551153430 has 64 divisors (see below), whose sum is σ = 1556210880. Its totient is φ = 138327552.

The previous prime is 551153429. The next prime is 551153437. The reversal of 551153430 is 34351155.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 551153394 and 551153403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551153437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55449 + ... + 64628.

It is an arithmetic number, because the mean of its divisors is an integer number (24315795).

Almost surely, 2^551153430 is an apocalyptic number.

551153430 is an abundant number, since it is smaller than the sum of its proper divisors (1005057450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551153430 is a wasteful number, since it uses less digits than its factorization.

551153430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120110 (or 120104 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 551153430 is about 23476.6571300089. The cubic root of 551153430 is about 819.8936159826.

The spelling of 551153430 in words is "five hundred fifty-one million, one hundred fifty-three thousand, four hundred thirty".