51252522452 has 24 divisors (see below), whose sum is σ = 90531561120. Its totient is φ = 25386449760.

The previous prime is 51252522449. The next prime is 51252522481. The reversal of 51252522452 is 25422525215.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4261127 + ... + 4273137.

It is an arithmetic number, because the mean of its divisors is an integer number (3772148380).

Almost surely, 2^51252522452 is an apocalyptic number.

It is an amenable number.

51252522452 is a deficient number, since it is larger than the sum of its proper divisors (39279038668).

51252522452 is a wasteful number, since it uses less digits than its factorization.

51252522452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21911 (or 21909 counting only the distinct ones).

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

The spelling of 51252522452 in words is "fifty-one billion, two hundred fifty-two million, five hundred twenty-two thousand, four hundred fifty-two".