69690051 has 20 divisors (see below), whose sum is σ = 104397832. Its totient is φ = 46329408.

The previous prime is 69690007. The next prime is 69690053. The reversal of 69690051 is 15009696.

It is not a de Polignac number, because 69690051 - 2⁷ = 69689923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69689988 and 69690015.

It is not an unprimeable number, because it can be changed into a prime (69690053) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34080 + ... + 36066.

Almost surely, 2^69690051 is an apocalyptic number.

69690051 is a deficient number, since it is larger than the sum of its proper divisors (34707781).

69690051 is a wasteful number, since it uses less digits than its factorization.

69690051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432 (or 2423 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 69690051 is about 8348.0567199798. The cubic root of 69690051 is about 411.5193498537.

The spelling of 69690051 in words is "sixty-nine million, six hundred ninety thousand, fifty-one".