51891295 has 16 divisors (see below), whose sum is σ = 65007360. Its totient is φ = 39714304.

The previous prime is 51891271. The next prime is 51891319. The reversal of 51891295 is 59219815.

It is an interprime number because it is at equal distance from previous prime (51891271) and next prime (51891319).

It is a cyclic number.

It is not a de Polignac number, because 51891295 - 2⁷ = 51891167 is a prime.

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14802 + ... + 17968.

It is an arithmetic number, because the mean of its divisors is an integer number (4062960).

Almost surely, 2^51891295 is an apocalyptic number.

51891295 is a deficient number, since it is larger than the sum of its proper divisors (13116065).

51891295 is a wasteful number, since it uses less digits than its factorization.

51891295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314.

The product of its digits is 32400, while the sum is 40.

The square root of 51891295 is about 7203.5612720376. The cubic root of 51891295 is about 372.9908428058.

The spelling of 51891295 in words is "fifty-one million, eight hundred ninety-one thousand, two hundred ninety-five".