20625527 has 8 divisors (see below), whose sum is σ = 22685376. Its totient is φ = 18633312.

The previous prime is 20625499. The next prime is 20625529. The reversal of 20625527 is 72552602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20625527 - 2⁸ = 20625271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20625527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20625529) 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, 16268 + ... + 17489.

It is an arithmetic number, because the mean of its divisors is an integer number (2835672).

Almost surely, 2^20625527 is an apocalyptic number.

20625527 is a deficient number, since it is larger than the sum of its proper divisors (2059849).

20625527 is a wasteful number, since it uses less digits than its factorization.

20625527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33817.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 20625527 is about 4541.5335515660. The cubic root of 20625527 is about 274.2426633537.

The spelling of 20625527 in words is "twenty million, six hundred twenty-five thousand, five hundred twenty-seven".