2155474752 has 56 divisors (see below), whose sum is σ = 5713305312. Its totient is φ = 717196800.

The previous prime is 2155474721. The next prime is 2155474753. The reversal of 2155474752 is 2574745512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155474753) 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, 99802 + ... + 119462.

Almost surely, 2^2155474752 is an apocalyptic number.

It is an amenable number.

2155474752 is an abundant number, since it is smaller than the sum of its proper divisors (3557830560).

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

2155474752 is a wasteful number, since it uses less digits than its factorization.

2155474752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20247 (or 20237 counting only the distinct ones).

The product of its digits is 392000, while the sum is 42.

The square root of 2155474752 is about 46427.0907122124. The cubic root of 2155474752 is about 1291.7574651694.

The spelling of 2155474752 in words is "two billion, one hundred fifty-five million, four hundred seventy-four thousand, seven hundred fifty-two".