69252561 has 12 divisors (see below), whose sum is σ = 114321792. Its totient is φ = 39572856.

The previous prime is 69252553. The next prime is 69252571. The reversal of 69252561 is 16525296.

69252561 is a `hidden beast` number, since 6 + 92 + 5 + 2 + 561 = 666.

It is not a de Polignac number, because 69252561 - 2³ = 69252553 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (69252571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 549561 + ... + 549686.

It is an arithmetic number, because the mean of its divisors is an integer number (9526816).

Almost surely, 2^69252561 is an apocalyptic number.

It is an amenable number.

69252561 is a deficient number, since it is larger than the sum of its proper divisors (45069231).

69252561 is a wasteful number, since it uses less digits than its factorization.

69252561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099260 (or 1099257 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 69252561 is about 8321.8123627008. The cubic root of 69252561 is about 410.6564162837.

The spelling of 69252561 in words is "sixty-nine million, two hundred fifty-two thousand, five hundred sixty-one".