56692091 has 2 divisors, whose sum is σ = 56692092. Its totient is φ = 56692090.

The previous prime is 56692063. The next prime is 56692109. The reversal of 56692091 is 19029665.

Together with next prime (56692109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56692091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56692001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28346045 + 28346046.

It is an arithmetic number, because the mean of its divisors is an integer number (28346046).

Almost surely, 2^56692091 is an apocalyptic number.

56692091 is a deficient number, since it is larger than the sum of its proper divisors (1).

56692091 is an equidigital number, since it uses as much as digits as its factorization.

56692091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 56692091 is about 7529.4150503210. The cubic root of 56692091 is about 384.1558860543.

The spelling of 56692091 in words is "fifty-six million, six hundred ninety-two thousand, ninety-one".