155002572 has 30 divisors (see below), whose sum is σ = 405208188. Its totient is φ = 51667416.

The previous prime is 155002571. The next prime is 155002577. The reversal of 155002572 is 275200551.

It is a happy number.

155002572 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (155002571) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 238878 + ... + 239525.

Almost surely, 2^155002572 is an apocalyptic number.

155002572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155002572 is an abundant number, since it is smaller than the sum of its proper divisors (250205616).

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

155002572 is a wasteful number, since it uses less digits than its factorization.

155002572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478419 (or 478408 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 155002572 is about 12450.0028915659. The cubic root of 155002572 is about 537.1715066554.

The spelling of 155002572 in words is "one hundred fifty-five million, two thousand, five hundred seventy-two".