48890225447561 has 2 divisors, whose sum is σ = 48890225447562. Its totient is φ = 48890225447560.

The previous prime is 48890225447533. The next prime is 48890225447587. The reversal of 48890225447561 is 16574452209884.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48863511179536 + 26714268025 = 6990244^2 + 163445^2 .

It is a cyclic number.

It is not a de Polignac number, because 48890225447561 - 2²² = 48890221253257 is a prime.

It is not a weakly prime, because it can be changed into another prime (48890225447521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24445112723780 + 24445112723781.

It is an arithmetic number, because the mean of its divisors is an integer number (24445112723781).

Almost surely, 2^{48890225447561} is an apocalyptic number.

It is an amenable number.

48890225447561 is a deficient number, since it is larger than the sum of its proper divisors (1).

48890225447561 is an equidigital number, since it uses as much as digits as its factorization.

48890225447561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 154828800, while the sum is 65.

The spelling of 48890225447561 in words is "forty-eight trillion, eight hundred ninety billion, two hundred twenty-five million, four hundred forty-seven thousand, five hundred sixty-one".