57220629 has 4 divisors (see below), whose sum is σ = 76294176. Its totient is φ = 38147084.

The previous prime is 57220627. The next prime is 57220679. The reversal of 57220629 is 92602275.

It is a happy number.

57220629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 57220629 - 2¹ = 57220627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57220629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57220627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9536769 + ... + 9536774.

It is an arithmetic number, because the mean of its divisors is an integer number (19073544).

Almost surely, 2^57220629 is an apocalyptic number.

It is an amenable number.

57220629 is a deficient number, since it is larger than the sum of its proper divisors (19073547).

57220629 is a wasteful number, since it uses less digits than its factorization.

57220629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19073546.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 57220629 is about 7564.4318359015. The cubic root of 57220629 is about 385.3460182650.

The spelling of 57220629 in words is "fifty-seven million, two hundred twenty thousand, six hundred twenty-nine".