51515295 has 32 divisors (see below), whose sum is σ = 90112512. Its totient is φ = 24976512.

The previous prime is 51515291. The next prime is 51515351. The reversal of 51515295 is 59251515.

It is not a de Polignac number, because 51515295 - 2² = 51515291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51515291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11094 + ... + 15036.

It is an arithmetic number, because the mean of its divisors is an integer number (2816016).

Almost surely, 2^51515295 is an apocalyptic number.

51515295 is a deficient number, since it is larger than the sum of its proper divisors (38597217).

51515295 is a wasteful number, since it uses less digits than its factorization.

51515295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031.

The product of its digits is 11250, while the sum is 33.

The square root of 51515295 is about 7177.4156212386. The cubic root of 51515295 is about 372.0877712305.

The spelling of 51515295 in words is "fifty-one million, five hundred fifteen thousand, two hundred ninety-five".