155252615 has 16 divisors (see below), whose sum is σ = 213125952. Its totient is φ = 106354944.

The previous prime is 155252567. The next prime is 155252627. The reversal of 155252615 is 516252551.

155252615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155252615 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56657 + ... + 59333.

It is an arithmetic number, because the mean of its divisors is an integer number (13320372).

Almost surely, 2^155252615 is an apocalyptic number.

155252615 is a deficient number, since it is larger than the sum of its proper divisors (57873337).

155252615 is a wasteful number, since it uses less digits than its factorization.

155252615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346.

The product of its digits is 15000, while the sum is 32.

The square root of 155252615 is about 12460.0407302705. The cubic root of 155252615 is about 537.4601982426.

The spelling of 155252615 in words is "one hundred fifty-five million, two hundred fifty-two thousand, six hundred fifteen".