155434056 has 16 divisors (see below), whose sum is σ = 388585200. Its totient is φ = 51811344.

The previous prime is 155434033. The next prime is 155434057. The reversal of 155434056 is 650434551.

It is a super-2 number, since 2×155434056² = 48319491529222272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155434057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3238186 + ... + 3238233.

It is an arithmetic number, because the mean of its divisors is an integer number (24286575).

Almost surely, 2^155434056 is an apocalyptic number.

It is an amenable number.

155434056 is an abundant number, since it is smaller than the sum of its proper divisors (233151144).

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

155434056 is a wasteful number, since it uses less digits than its factorization.

155434056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476428 (or 6476424 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 155434056 is about 12467.3195194476. The cubic root of 155434056 is about 537.6694901581.

The spelling of 155434056 in words is "one hundred fifty-five million, four hundred thirty-four thousand, fifty-six".