51495087 has 8 divisors (see below), whose sum is σ = 78468736. Its totient is φ = 29425752.

The previous prime is 51495053. The next prime is 51495089. The reversal of 51495087 is 78059415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51495087 - 2⁸ = 51494831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51495089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1226053 + ... + 1226094.

It is an arithmetic number, because the mean of its divisors is an integer number (9808592).

Almost surely, 2^51495087 is an apocalyptic number.

51495087 is a deficient number, since it is larger than the sum of its proper divisors (26973649).

51495087 is a wasteful number, since it uses less digits than its factorization.

51495087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452157.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 51495087 is about 7176.0077341095. The cubic root of 51495087 is about 372.0391116814.

The spelling of 51495087 in words is "fifty-one million, four hundred ninety-five thousand, eighty-seven".