156216552 has 32 divisors (see below), whose sum is σ = 407522880. Its totient is φ = 49808000.

The previous prime is 156216521. The next prime is 156216559. The reversal of 156216552 is 255612651.

It is a super-2 number, since 2×156216552² = 48807222237537408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (156216559) 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, 140949 + ... + 142052.

It is an arithmetic number, because the mean of its divisors is an integer number (12735090).

Almost surely, 2^156216552 is an apocalyptic number.

156216552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

156216552 is an abundant number, since it is smaller than the sum of its proper divisors (251306328).

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

156216552 is a wasteful number, since it uses less digits than its factorization.

156216552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283033 (or 283029 counting only the distinct ones).

The product of its digits is 18000, while the sum is 33.

The square root of 156216552 is about 12498.6620083911. The cubic root of 156216552 is about 538.5702369484.

The spelling of 156216552 in words is "one hundred fifty-six million, two hundred sixteen thousand, five hundred fifty-two".