20625526 has 16 divisors (see below), whose sum is σ = 33984000. Its totient is φ = 9344808.

The previous prime is 20625499. The next prime is 20625529. The reversal of 20625526 is 62552602.

20625526 = 124² + 125² + ... + 399².

It is a junction number, because it is equal to n+sod(n) for n = 20625494 and 20625503.

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, 10926 + ... + 12673.

It is an arithmetic number, because the mean of its divisors is an integer number (2124000).

Almost surely, 2^20625526 is an apocalyptic number.

20625526 is a deficient number, since it is larger than the sum of its proper divisors (13358474).

20625526 is a wasteful number, since it uses less digits than its factorization.

20625526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23643.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 20625526 is about 4541.5334414711. The cubic root of 20625526 is about 274.2426589216.

The spelling of 20625526 in words is "twenty million, six hundred twenty-five thousand, five hundred twenty-six".