55620022057 has 8 divisors (see below), whose sum is σ = 55724106816. Its totient is φ = 55515994512.

The previous prime is 55620022049. The next prime is 55620022093. The reversal of 55620022057 is 75022002655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55620022057 - 2³ = 55620022049 is a prime.

It is a super-2 number, since 2×55620022057² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55620052057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2263278 + ... + 2287720.

It is an arithmetic number, because the mean of its divisors is an integer number (6965513352).

Almost surely, 2^55620022057 is an apocalyptic number.

It is an amenable number.

55620022057 is a deficient number, since it is larger than the sum of its proper divisors (104084759).

55620022057 is a wasteful number, since it uses less digits than its factorization.

55620022057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28607.

The product of its (nonzero) digits is 42000, while the sum is 34.

The spelling of 55620022057 in words is "fifty-five billion, six hundred twenty million, twenty-two thousand, fifty-seven".