48556621 has 2 divisors, whose sum is σ = 48556622. Its totient is φ = 48556620.

The previous prime is 48556603. The next prime is 48556637. The reversal of 48556621 is 12665584.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41744521 + 6812100 = 6461^2 + 2610^2 .

It is a cyclic number.

It is not a de Polignac number, because 48556621 - 2²⁵ = 15002189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48556601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24278310 + 24278311.

It is an arithmetic number, because the mean of its divisors is an integer number (24278311).

Almost surely, 2^48556621 is an apocalyptic number.

It is an amenable number.

48556621 is a deficient number, since it is larger than the sum of its proper divisors (1).

48556621 is an equidigital number, since it uses as much as digits as its factorization.

48556621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 37.

The square root of 48556621 is about 6968.2581037157. The cubic root of 48556621 is about 364.8235113484.

It can be divided in two parts, 4855 and 6621, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 48556621 in words is "forty-eight million, five hundred fifty-six thousand, six hundred twenty-one".