51924557 has 4 divisors (see below), whose sum is σ = 52108320. Its totient is φ = 51740796.

The previous prime is 51924541. The next prime is 51924571. The reversal of 51924557 is 75542915.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51924557 - 2⁴ = 51924541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51924557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51924157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91457 + ... + 92022.

It is an arithmetic number, because the mean of its divisors is an integer number (13027080).

Almost surely, 2^51924557 is an apocalyptic number.

It is an amenable number.

51924557 is a deficient number, since it is larger than the sum of its proper divisors (183763).

51924557 is a wasteful number, since it uses less digits than its factorization.

51924557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183762.

The product of its digits is 63000, while the sum is 38.

The square root of 51924557 is about 7205.8696213573. The cubic root of 51924557 is about 373.0705207270.

The spelling of 51924557 in words is "fifty-one million, nine hundred twenty-four thousand, five hundred fifty-seven".