51136251234 has 32 divisors (see below), whose sum is σ = 102693208320. Its totient is φ = 16975353600.

The previous prime is 51136251227. The next prime is 51136251241. The reversal of 51136251234 is 43215263115.

It is an interprime number because it is at equal distance from previous prime (51136251227) and next prime (51136251241).

It is a super-2 number, since 2×51136251234² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51136251195 and 51136251204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5017624 + ... + 5027804.

It is an arithmetic number, because the mean of its divisors is an integer number (3209162760).

Almost surely, 2^51136251234 is an apocalyptic number.

51136251234 is an abundant number, since it is smaller than the sum of its proper divisors (51556957086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51136251234 is a wasteful number, since it uses less digits than its factorization.

51136251234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13546.

The product of its digits is 21600, while the sum is 33.

The spelling of 51136251234 in words is "fifty-one billion, one hundred thirty-six million, two hundred fifty-one thousand, two hundred thirty-four".