2155053516252 has 96 divisors (see below), whose sum is σ = 6208645373952. Its totient is φ = 566549807616.

The previous prime is 2155053516211. The next prime is 2155053516271. The reversal of 2155053516252 is 2526153505512.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2810748 + ... + 3494339.

It is an arithmetic number, because the mean of its divisors is an integer number (64673389312).

Almost surely, 2^{2155053516252} is an apocalyptic number.

It is an amenable number.

2155053516252 is an abundant number, since it is smaller than the sum of its proper divisors (4053591857700).

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

2155053516252 is a wasteful number, since it uses less digits than its factorization.

2155053516252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305427 (or 6305425 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 2155053516252 in words is "two trillion, one hundred fifty-five billion, fifty-three million, five hundred sixteen thousand, two hundred fifty-two".