51900878 has 8 divisors (see below), whose sum is σ = 79507872. Its totient is φ = 25398256.

The previous prime is 51900869. The next prime is 51900887. The reversal of 51900878 is 87800915.

It is an interprime number because it is at equal distance from previous prime (51900869) and next prime (51900887).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51900878² = 5387402274341768, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275975 + ... + 276162.

It is an arithmetic number, because the mean of its divisors is an integer number (9938484).

Almost surely, 2^51900878 is an apocalyptic number.

51900878 is a deficient number, since it is larger than the sum of its proper divisors (27606994).

51900878 is a wasteful number, since it uses less digits than its factorization.

51900878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552186.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 51900878 is about 7204.2263984414. The cubic root of 51900878 is about 373.0138020275.

The spelling of 51900878 in words is "fifty-one million, nine hundred thousand, eight hundred seventy-eight".