55651701 has 12 divisors (see below), whose sum is σ = 86317152. Its totient is φ = 31800888.

The previous prime is 55651699. The next prime is 55651711. The reversal of 55651701 is 10715655.

It is not a de Polignac number, because 55651701 - 2¹ = 55651699 is a prime.

It is a super-2 number, since 2×55651701² = 6194223648386802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55651711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189145 + ... + 189438.

It is an arithmetic number, because the mean of its divisors is an integer number (7193096).

Almost surely, 2^55651701 is an apocalyptic number.

It is an amenable number.

55651701 is a deficient number, since it is larger than the sum of its proper divisors (30665451).

55651701 is a wasteful number, since it uses less digits than its factorization.

55651701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378600 (or 378593 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 55651701 is about 7460.0067694339. The cubic root of 55651701 is about 381.7914054455.

The spelling of 55651701 in words is "fifty-five million, six hundred fifty-one thousand, seven hundred one".