2155104532 has 24 divisors (see below), whose sum is σ = 4312016576. Its totient is φ = 923228928.

The previous prime is 2155104527. The next prime is 2155104533. The reversal of 2155104532 is 2354015512.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 2155104532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155104533) 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, 57763 + ... + 87445.

Almost surely, 2^2155104532 is an apocalyptic number.

It is an amenable number.

2155104532 is an abundant number, since it is smaller than the sum of its proper divisors (2156912044).

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

2155104532 is a wasteful number, since it uses less digits than its factorization.

2155104532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32287 (or 32285 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2155104532 is about 46423.1034292194. The cubic root of 2155104532 is about 1291.6835043817.

The spelling of 2155104532 in words is "two billion, one hundred fifty-five million, one hundred four thousand, five hundred thirty-two".