157553520 has 80 divisors (see below), whose sum is σ = 505280160. Its totient is φ = 40563712.

The previous prime is 157553507. The next prime is 157553521. The reversal of 157553520 is 25355751.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×157553520² = 49646223328780800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157553521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4359 + ... + 18278.

It is an arithmetic number, because the mean of its divisors is an integer number (6316002).

Almost surely, 2^157553520 is an apocalyptic number.

157553520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157553520 is an abundant number, since it is smaller than the sum of its proper divisors (347726640).

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

157553520 is a wasteful number, since it uses less digits than its factorization.

157553520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22682 (or 22676 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 33.

The square root of 157553520 is about 12552.0325047380. The cubic root of 157553520 is about 540.1023125754.

The spelling of 157553520 in words is "one hundred fifty-seven million, five hundred fifty-three thousand, five hundred twenty".