51923877 has 4 divisors (see below), whose sum is σ = 69231840. Its totient is φ = 34615916.

The previous prime is 51923873. The next prime is 51923909. The reversal of 51923877 is 77832915.

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 51923877 - 2² = 51923873 is a prime.

It is a super-2 number, since 2×51923877² = 5392178005422258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51923873) 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, 8653977 + ... + 8653982.

It is an arithmetic number, because the mean of its divisors is an integer number (17307960).

Almost surely, 2^51923877 is an apocalyptic number.

It is an amenable number.

51923877 is a deficient number, since it is larger than the sum of its proper divisors (17307963).

51923877 is a wasteful number, since it uses less digits than its factorization.

51923877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17307962.

The product of its digits is 105840, while the sum is 42.

The square root of 51923877 is about 7205.8224374460. The cubic root of 51923877 is about 373.0688921523.

The spelling of 51923877 in words is "fifty-one million, nine hundred twenty-three thousand, eight hundred seventy-seven".