51532250352 has 80 divisors (see below), whose sum is σ = 151541515008. Its totient is φ = 14936880640.

The previous prime is 51532250327. The next prime is 51532250417. The reversal of 51532250352 is 25305223515.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

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, 2109573 + ... + 2133860.

Almost surely, 2^51532250352 is an apocalyptic number.

It is an amenable number.

51532250352 is an abundant number, since it is smaller than the sum of its proper divisors (100009264656).

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

51532250352 is a wasteful number, since it uses less digits than its factorization.

51532250352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243478 (or 4243472 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

Adding to 51532250352 its reverse (25305223515), we get a palindrome (76837473867).

The spelling of 51532250352 in words is "fifty-one billion, five hundred thirty-two million, two hundred fifty thousand, three hundred fifty-two".