13552550 has 48 divisors (see below), whose sum is σ = 28216944. Its totient is φ = 4800000.

The previous prime is 13552547. The next prime is 13552573. The reversal of 13552550 is 5525531.

It is a super-2 number, since 2×13552550² = 367343223005000, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22250 + ... + 22850.

It is an arithmetic number, because the mean of its divisors is an integer number (587853).

Almost surely, 2^13552550 is an apocalyptic number.

13552550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13552550 is an abundant number, since it is smaller than the sum of its proper divisors (14664394).

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

13552550 is a wasteful number, since it uses less digits than its factorization.

13552550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 13552550 is about 3681.3788177801. The cubic root of 13552550 is about 238.4187130597.

The spelling of 13552550 in words is "thirteen million, five hundred fifty-two thousand, five hundred fifty".