53865925 has 12 divisors (see below), whose sum is σ = 67736736. Its totient is φ = 42484400.

The previous prime is 53865919. The next prime is 53865961. The reversal of 53865925 is 52956835.

It is a de Polignac number, because none of the positive numbers 2^k-53865925 is a prime.

It is a super-2 number, since 2×53865925² = 5803075752211250, which contains 22 as substring.

It is a Duffinian number.

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, 13399 + ... + 16948.

It is an arithmetic number, because the mean of its divisors is an integer number (5644728).

Almost surely, 2^53865925 is an apocalyptic number.

It is an amenable number.

53865925 is a deficient number, since it is larger than the sum of its proper divisors (13870811).

53865925 is a wasteful number, since it uses less digits than its factorization.

53865925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30428 (or 30423 counting only the distinct ones).

The product of its digits is 324000, while the sum is 43.

The square root of 53865925 is about 7339.3409104633. The cubic root of 53865925 is about 377.6632336475.

It can be divided in two parts, 5386 and 5925, that added together give a palindrome (11311).

The spelling of 53865925 in words is "fifty-three million, eight hundred sixty-five thousand, nine hundred twenty-five".