55610749 has 4 divisors (see below), whose sum is σ = 55890400. Its totient is φ = 55331100.

The previous prime is 55610713. The next prime is 55610771. The reversal of 55610749 is 94701655.

55610749 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55610749 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 (55614749) 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, 139527 + ... + 139924.

It is an arithmetic number, because the mean of its divisors is an integer number (13972600).

Almost surely, 2^55610749 is an apocalyptic number.

It is an amenable number.

55610749 is a deficient number, since it is larger than the sum of its proper divisors (279651).

55610749 is a wasteful number, since it uses less digits than its factorization.

55610749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279650.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 55610749 is about 7457.2614946775. The cubic root of 55610749 is about 381.6977338055.

The spelling of 55610749 in words is "fifty-five million, six hundred ten thousand, seven hundred forty-nine".