51790995 has 40 divisors (see below), whose sum is σ = 95135040. Its totient is φ = 26939520.

The previous prime is 51790957. The next prime is 51791029. The reversal of 51790995 is 59909715.

It is not a de Polignac number, because 51790995 - 2⁷ = 51790867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 51790995.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15046 + ... + 18164.

It is an arithmetic number, because the mean of its divisors is an integer number (2378376).

Almost surely, 2^51790995 is an apocalyptic number.

51790995 is a deficient number, since it is larger than the sum of its proper divisors (43344045).

51790995 is a wasteful number, since it uses less digits than its factorization.

51790995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177 (or 3168 counting only the distinct ones).

The product of its (nonzero) digits is 127575, while the sum is 45.

The square root of 51790995 is about 7196.5960703655. The cubic root of 51790995 is about 372.7503714436.

The spelling of 51790995 in words is "fifty-one million, seven hundred ninety thousand, nine hundred ninety-five".