2157027525 has 36 divisors (see below), whose sum is σ = 3866019300. Its totient is φ = 1149657600.

The previous prime is 2157027493. The next prime is 2157027539. The reversal of 2157027525 is 5257207512.

It can be written as a sum of positive squares in 6 ways, for example, as 15374241 + 2141653284 = 3921^2 + 46278^2 .

It is not a de Polignac number, because 2157027525 - 2⁵ = 2157027493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2157027525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 571645 + ... + 575405.

It is an arithmetic number, because the mean of its divisors is an integer number (107389425).

Almost surely, 2^2157027525 is an apocalyptic number.

2157027525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2157027525 is a deficient number, since it is larger than the sum of its proper divisors (1708991775).

2157027525 is a wasteful number, since it uses less digits than its factorization.

2157027525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6326 (or 6318 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The square root of 2157027525 is about 46443.8104056935. The cubic root of 2157027525 is about 1292.0675785453.

The spelling of 2157027525 in words is "two billion, one hundred fifty-seven million, twenty-seven thousand, five hundred twenty-five".