55614997 has 2 divisors, whose sum is σ = 55614998. Its totient is φ = 55614996.

The previous prime is 55614991. The next prime is 55615009. The reversal of 55614997 is 79941655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34739236 + 20875761 = 5894^2 + 4569^2 .

It is a cyclic number.

It is not a de Polignac number, because 55614997 - 2⁷ = 55614869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55614991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27807498 + 27807499.

It is an arithmetic number, because the mean of its divisors is an integer number (27807499).

Almost surely, 2^55614997 is an apocalyptic number.

It is an amenable number.

55614997 is a deficient number, since it is larger than the sum of its proper divisors (1).

55614997 is an equidigital number, since it uses as much as digits as its factorization.

55614997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 46.

The square root of 55614997 is about 7457.5463122933. The cubic root of 55614997 is about 381.7074526142.

The spelling of 55614997 in words is "fifty-five million, six hundred fourteen thousand, nine hundred ninety-seven".