51024492 has 30 divisors (see below), whose sum is σ = 133388948. Its totient is φ = 17008056.

The previous prime is 51024473. The next prime is 51024521. The reversal of 51024492 is 29442015.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 78418 + ... + 79065.

Almost surely, 2^51024492 is an apocalyptic number.

It is an amenable number.

51024492 is an abundant number, since it is smaller than the sum of its proper divisors (82364456).

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

51024492 is a wasteful number, since it uses less digits than its factorization.

51024492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157499 (or 157488 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 51024492 is about 7143.1430057083. The cubic root of 51024492 is about 370.9023313883.

The spelling of 51024492 in words is "fifty-one million, twenty-four thousand, four hundred ninety-two".