48890225447521 has 2 divisors, whose sum is σ = 48890225447522. Its totient is φ = 48890225447520.

The previous prime is 48890225447513. The next prime is 48890225447533. The reversal of 48890225447521 is 12574452209884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32235868496896 + 16654356950625 = 5677664^2 + 4080975^2 .

It is a cyclic number.

It is not a de Polignac number, because 48890225447521 - 2³ = 48890225447513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 48890225447521.

It is not a weakly prime, because it can be changed into another prime (48890225447561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24445112723760 + 24445112723761.

It is an arithmetic number, because the mean of its divisors is an integer number (24445112723761).

Almost surely, 2^{48890225447521} is an apocalyptic number.

It is an amenable number.

48890225447521 is a deficient number, since it is larger than the sum of its proper divisors (1).

48890225447521 is an equidigital number, since it uses as much as digits as its factorization.

48890225447521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51609600, while the sum is 61.

The spelling of 48890225447521 in words is "forty-eight trillion, eight hundred ninety billion, two hundred twenty-five million, four hundred forty-seven thousand, five hundred twenty-one".