55792621 has 2 divisors, whose sum is σ = 55792622. Its totient is φ = 55792620.

The previous prime is 55792609. The next prime is 55792637. The reversal of 55792621 is 12629755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35271721 + 20520900 = 5939^2 + 4530^2 .

It is a cyclic number.

It is not a de Polignac number, because 55792621 - 2¹¹ = 55790573 is a prime.

It is a super-2 number, since 2×55792621² = 6225633116099282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55790621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27896310 + 27896311.

It is an arithmetic number, because the mean of its divisors is an integer number (27896311).

Almost surely, 2^55792621 is an apocalyptic number.

It is an amenable number.

55792621 is a deficient number, since it is larger than the sum of its proper divisors (1).

55792621 is an equidigital number, since it uses as much as digits as its factorization.

55792621 is an evil number, because the sum of its binary digits is even.

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

The square root of 55792621 is about 7469.4458295110. The cubic root of 55792621 is about 382.1133883951.

The spelling of 55792621 in words is "fifty-five million, seven hundred ninety-two thousand, six hundred twenty-one".