51254925 has 48 divisors (see below), whose sum is σ = 90613248. Its totient is φ = 25502400.

The previous prime is 51254923. The next prime is 51254927. The reversal of 51254925 is 52945215.

It is an interprime number because it is at equal distance from previous prime (51254923) and next prime (51254927).

It is not a de Polignac number, because 51254925 - 2¹ = 51254923 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51254921) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73830 + ... + 74520.

It is an arithmetic number, because the mean of its divisors is an integer number (1887776).

Almost surely, 2^51254925 is an apocalyptic number.

It is an amenable number.

51254925 is a deficient number, since it is larger than the sum of its proper divisors (39358323).

51254925 is a wasteful number, since it uses less digits than its factorization.

51254925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 765 counting only the distinct ones).

The product of its digits is 18000, while the sum is 33.

The square root of 51254925 is about 7159.2545002954. The cubic root of 51254925 is about 371.4598401050.

The spelling of 51254925 in words is "fifty-one million, two hundred fifty-four thousand, nine hundred twenty-five".