51042623532 has 24 divisors (see below), whose sum is σ = 119179914672. Its totient is φ = 17002713600.

The previous prime is 51042623417. The next prime is 51042623537. The reversal of 51042623532 is 23532624015.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51042623493 and 51042623502.

It is not an unprimeable number, because it can be changed into a prime (51042623537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1418269 + ... + 1453812.

It is an arithmetic number, because the mean of its divisors is an integer number (4965829778).

Almost surely, 2^51042623532 is an apocalyptic number.

It is an amenable number.

51042623532 is an abundant number, since it is smaller than the sum of its proper divisors (68137291140).

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

51042623532 is a wasteful number, since it uses less digits than its factorization.

51042623532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873569 (or 2873567 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 51042623532 in words is "fifty-one billion, forty-two million, six hundred twenty-three thousand, five hundred thirty-two".