51452425520 has 40 divisors (see below), whose sum is σ = 119636435040. Its totient is φ = 20579328000.

The previous prime is 51452425469. The next prime is 51452425567. The reversal of 51452425520 is 2552425415.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×51452425520² (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 7 ways as a sum of consecutive naturals, for example, 1725296 + ... + 1754864.

It is an arithmetic number, because the mean of its divisors is an integer number (2990910876).

Almost surely, 2^51452425520 is an apocalyptic number.

It is an amenable number.

51452425520 is an abundant number, since it is smaller than the sum of its proper divisors (68184009520).

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

51452425520 is a wasteful number, since it uses less digits than its factorization.

51452425520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51333 (or 51327 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 51452425520 in words is "fifty-one billion, four hundred fifty-two million, four hundred twenty-five thousand, five hundred twenty".