51440545235 has 32 divisors (see below), whose sum is σ = 65016000000. Its totient is φ = 38995646976.

The previous prime is 51440545217. The next prime is 51440545253. The reversal of 51440545235 is 53254504415.

It is an interprime number because it is at equal distance from previous prime (51440545217) and next prime (51440545253).

It is not a de Polignac number, because 51440545235 - 2⁶ = 51440545171 is a prime.

It is a super-2 number, since 2×51440545235² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7973291 + ... + 7979739.

It is an arithmetic number, because the mean of its divisors is an integer number (2031750000).

Almost surely, 2^51440545235 is an apocalyptic number.

51440545235 is a deficient number, since it is larger than the sum of its proper divisors (13575454765).

51440545235 is a wasteful number, since it uses less digits than its factorization.

51440545235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7115.

The product of its (nonzero) digits is 240000, while the sum is 38.

The spelling of 51440545235 in words is "fifty-one billion, four hundred forty million, five hundred forty-five thousand, two hundred thirty-five".