55799501 has 2 divisors, whose sum is σ = 55799502. Its totient is φ = 55799500.

The previous prime is 55799467. The next prime is 55799519. The reversal of 55799501 is 10599755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40386025 + 15413476 = 6355^2 + 3926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55799501 is a prime.

It is a super-2 number, since 2×55799501² = 6227168623698002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55799591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27899750 + 27899751.

It is an arithmetic number, because the mean of its divisors is an integer number (27899751).

Almost surely, 2^55799501 is an apocalyptic number.

It is an amenable number.

55799501 is a deficient number, since it is larger than the sum of its proper divisors (1).

55799501 is an equidigital number, since it uses as much as digits as its factorization.

55799501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70875, while the sum is 41.

The square root of 55799501 is about 7469.9063581815. The cubic root of 55799501 is about 382.1290943673.

The spelling of 55799501 in words is "fifty-five million, seven hundred ninety-nine thousand, five hundred one".