51023245245 has 64 divisors (see below), whose sum is σ = 94809415680. Its totient is φ = 22949042688.

The previous prime is 51023245243. The next prime is 51023245249. The reversal of 51023245245 is 54254232015.

It is a happy number.

It is not a de Polignac number, because 51023245245 - 2¹ = 51023245243 is a prime.

It is a super-2 number, since 2×51023245245² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51023245243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3203692 + ... + 3219578.

It is an arithmetic number, because the mean of its divisors is an integer number (1481397120).

Almost surely, 2^51023245245 is an apocalyptic number.

It is an amenable number.

51023245245 is a deficient number, since it is larger than the sum of its proper divisors (43786170435).

51023245245 is a wasteful number, since it uses less digits than its factorization.

51023245245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16394.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 51023245245 in words is "fifty-one billion, twenty-three million, two hundred forty-five thousand, two hundred forty-five".