51370425 has 36 divisors (see below), whose sum is σ = 92504620. Its totient is φ = 27250560.

The previous prime is 51370399. The next prime is 51370427. The reversal of 51370425 is 52407315.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5076009 + 46294416 = 2253^2 + 6804^2 .

It is not a de Polignac number, because 51370425 - 2⁸ = 51370169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51370427) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51027 + ... + 52023.

Almost surely, 2^51370425 is an apocalyptic number.

It is an amenable number.

51370425 is a deficient number, since it is larger than the sum of its proper divisors (41134195).

51370425 is a wasteful number, since it uses less digits than its factorization.

51370425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 1234 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 51370425 is about 7167.3164434117. The cubic root of 51370425 is about 371.7386518477.

The spelling of 51370425 in words is "fifty-one million, three hundred seventy thousand, four hundred twenty-five".