55657033 has 4 divisors (see below), whose sum is σ = 58076928. Its totient is φ = 53237140.

The previous prime is 55656989. The next prime is 55657037. The reversal of 55657033 is 33075655.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33075655 = 5 ⋅6615131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55657033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55657033.

It is not an unprimeable number, because it can be changed into a prime (55657037) 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, 1209913 + ... + 1209958.

It is an arithmetic number, because the mean of its divisors is an integer number (14519232).

Almost surely, 2^55657033 is an apocalyptic number.

It is an amenable number.

55657033 is a deficient number, since it is larger than the sum of its proper divisors (2419895).

55657033 is a wasteful number, since it uses less digits than its factorization.

55657033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419894.

The product of its (nonzero) digits is 47250, while the sum is 34.

The square root of 55657033 is about 7460.3641332042. The cubic root of 55657033 is about 381.8035982250.

The spelling of 55657033 in words is "fifty-five million, six hundred fifty-seven thousand, thirty-three".