51930801 has 48 divisors (see below), whose sum is σ = 88792704. Its totient is φ = 30046464.

The previous prime is 51930787. The next prime is 51930833. The reversal of 51930801 is 10803915.

It is not a de Polignac number, because 51930801 - 2⁹ = 51930289 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51930871) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53220 + ... + 54186.

It is an arithmetic number, because the mean of its divisors is an integer number (1849848).

Almost surely, 2^51930801 is an apocalyptic number.

51930801 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

51930801 is a deficient number, since it is larger than the sum of its proper divisors (36861903).

51930801 is a wasteful number, since it uses less digits than its factorization.

51930801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 51930801 is about 7206.3028662415. The cubic root of 51930801 is about 373.0854742101.

The spelling of 51930801 in words is "fifty-one million, nine hundred thirty thousand, eight hundred one".