20762725 has 12 divisors (see below), whose sum is σ = 27101440. Its totient is φ = 15735600.

The previous prime is 20762719. The next prime is 20762741. The reversal of 20762725 is 52726702.

It is not a de Polignac number, because 20762725 - 2¹⁹ = 20238437 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21381 + ... + 22330.

Almost surely, 2^20762725 is an apocalyptic number.

20762725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20762725 is a deficient number, since it is larger than the sum of its proper divisors (6338715).

20762725 is a wasteful number, since it uses less digits than its factorization.

20762725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43740 (or 43735 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 20762725 is about 4556.6133257058. The cubic root of 20762725 is about 274.8493941186.

The spelling of 20762725 in words is "twenty million, seven hundred sixty-two thousand, seven hundred twenty-five".