55701563 has 4 divisors (see below), whose sum is σ = 55732680. Its totient is φ = 55670448.

The previous prime is 55701551. The next prime is 55701577. The reversal of 55701563 is 36510755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36510755 = 5 ⋅7302151.

It is a cyclic number.

It is not a de Polignac number, because 55701563 - 2¹⁰ = 55700539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55701523) 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, 12698 + ... + 16511.

It is an arithmetic number, because the mean of its divisors is an integer number (13933170).

Almost surely, 2^55701563 is an apocalyptic number.

55701563 is a deficient number, since it is larger than the sum of its proper divisors (31117).

55701563 is a wasteful number, since it uses less digits than its factorization.

55701563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31116.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 55701563 is about 7463.3479752722. The cubic root of 55701563 is about 381.9053953750.

The spelling of 55701563 in words is "fifty-five million, seven hundred one thousand, five hundred sixty-three".