51969051 has 24 divisors (see below), whose sum is σ = 82053504. Its totient is φ = 31553280.

The previous prime is 51968993. The next prime is 51969059. The reversal of 51969051 is 15096915.

51969051 is a `hidden beast` number, since 519 + 6 + 90 + 51 = 666.

It is not a de Polignac number, because 51969051 - 2¹⁰ = 51968027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51968997 and 51969015.

It is not an unprimeable number, because it can be changed into a prime (51969059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 736 + ... + 10221.

It is an arithmetic number, because the mean of its divisors is an integer number (3418896).

Almost surely, 2^51969051 is an apocalyptic number.

51969051 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

51969051 is a deficient number, since it is larger than the sum of its proper divisors (30084453).

51969051 is a wasteful number, since it uses less digits than its factorization.

51969051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011 (or 11008 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

The square root of 51969051 is about 7208.9563044868. The cubic root of 51969051 is about 373.1770513144.

The spelling of 51969051 in words is "fifty-one million, nine hundred sixty-nine thousand, fifty-one".