5551401123 has 8 divisors (see below), whose sum is σ = 8224298000. Its totient is φ = 3700934064.

The previous prime is 5551401113. The next prime is 5551401127. The reversal of 5551401123 is 3211041555.

It is not a de Polignac number, because 5551401123 - 2⁵ = 5551401091 is a prime.

It is a super-2 number, since 2×5551401123² = 61636108856891322258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 205607449 = 5551401123 / (5 + 5 + 5 + 1 + 4 + 0 + 1 + 1 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5551401127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102803698 + ... + 102803751.

It is an arithmetic number, because the mean of its divisors is an integer number (1028037250).

Almost surely, 2^5551401123 is an apocalyptic number.

5551401123 is a deficient number, since it is larger than the sum of its proper divisors (2672896877).

5551401123 is a wasteful number, since it uses less digits than its factorization.

5551401123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205607458 (or 205607452 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 5551401123 is about 74507.7252571839. The cubic root of 5551401123 is about 1770.6560308786.

Adding to 5551401123 its reverse (3211041555), we get a palindrome (8762442678).

The spelling of 5551401123 in words is "five billion, five hundred fifty-one million, four hundred one thousand, one hundred twenty-three".