51294025 has 24 divisors (see below), whose sum is σ = 68192064. Its totient is φ = 38174400.

The previous prime is 51294017. The next prime is 51294031. The reversal of 51294025 is 52049215.

It is not a de Polignac number, because 51294025 - 2³ = 51294017 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51293984 and 51294002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20070 + ... + 22480.

It is an arithmetic number, because the mean of its divisors is an integer number (2841336).

Almost surely, 2^51294025 is an apocalyptic number.

It is an amenable number.

51294025 is a deficient number, since it is larger than the sum of its proper divisors (16898039).

51294025 is a wasteful number, since it uses less digits than its factorization.

51294025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481 (or 2476 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 51294025 is about 7161.9847109583. The cubic root of 51294025 is about 371.5542725786.

The spelling of 51294025 in words is "fifty-one million, two hundred ninety-four thousand, twenty-five".