55979701 has 4 divisors (see below), whose sum is σ = 56171052. Its totient is φ = 55788352.

The previous prime is 55979687. The next prime is 55979711. The reversal of 55979701 is 10797955.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54022500 + 1957201 = 7350^2 + 1399^2 .

It is a cyclic number.

It is not a de Polignac number, because 55979701 - 2¹⁷ = 55848629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55979711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95236 + ... + 95821.

It is an arithmetic number, because the mean of its divisors is an integer number (14042763).

Almost surely, 2^55979701 is an apocalyptic number.

It is an amenable number.

55979701 is a deficient number, since it is larger than the sum of its proper divisors (191351).

55979701 is a wasteful number, since it uses less digits than its factorization.

55979701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191350.

The product of its (nonzero) digits is 99225, while the sum is 43.

The square root of 55979701 is about 7481.9583666310. The cubic root of 55979701 is about 382.5400040749.

The spelling of 55979701 in words is "fifty-five million, nine hundred seventy-nine thousand, seven hundred one".