55653765 has 16 divisors (see below), whose sum is σ = 89865600. Its totient is φ = 29408832.

The previous prime is 55653749. The next prime is 55653797. The reversal of 55653765 is 56735655.

It is a happy number.

It is not a de Polignac number, because 55653765 - 2⁴ = 55653749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15385 + ... + 18654.

It is an arithmetic number, because the mean of its divisors is an integer number (5616600).

Almost surely, 2^55653765 is an apocalyptic number.

It is an amenable number.

55653765 is a deficient number, since it is larger than the sum of its proper divisors (34211835).

55653765 is a wasteful number, since it uses less digits than its factorization.

55653765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34156.

The product of its digits is 472500, while the sum is 42.

The square root of 55653765 is about 7460.1451058274. The cubic root of 55653765 is about 381.7961253235.

The spelling of 55653765 in words is "fifty-five million, six hundred fifty-three thousand, seven hundred sixty-five".