51325465 has 16 divisors (see below), whose sum is σ = 66449808. Its totient is φ = 37912576.

The previous prime is 51325453. The next prime is 51325471. The reversal of 51325465 is 56452315.

It can be written as a sum of positive squares in 8 ways, for example, as 5031049 + 46294416 = 2243^2 + 6804^2 .

It is a cyclic number.

It is not a de Polignac number, because 51325465 - 2⁵ = 51325433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1192 + ... + 10201.

It is an arithmetic number, because the mean of its divisors is an integer number (4153113).

Almost surely, 2^51325465 is an apocalyptic number.

It is an amenable number.

51325465 is a deficient number, since it is larger than the sum of its proper divisors (15124343).

51325465 is a wasteful number, since it uses less digits than its factorization.

51325465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11468.

The product of its digits is 18000, while the sum is 31.

The square root of 51325465 is about 7164.1792970305. The cubic root of 51325465 is about 371.6301701803.

The spelling of 51325465 in words is "fifty-one million, three hundred twenty-five thousand, four hundred sixty-five".