155103552 has 56 divisors (see below), whose sum is σ = 455980800. Its totient is φ = 51700608.

The previous prime is 155103551. The next prime is 155103577. The reversal of 155103552 is 255301551.

155103552 is a `hidden beast` number, since 1 + 5 + 5 + 103 + 552 = 666.

It is a super-2 number, since 2×155103552² = 48114223686033408, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155103551) 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, 43152 + ... + 46607.

Almost surely, 2^155103552 is an apocalyptic number.

155103552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155103552 is an abundant number, since it is smaller than the sum of its proper divisors (300877248).

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

155103552 is an equidigital number, since it uses as much as digits as its factorization.

155103552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89780 (or 89764 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 155103552 is about 12454.0576520265. The cubic root of 155103552 is about 537.2881322548.

The spelling of 155103552 in words is "one hundred fifty-five million, one hundred three thousand, five hundred fifty-two".