1250057561201 has 2 divisors, whose sum is σ = 1250057561202. Its totient is φ = 1250057561200.

The previous prime is 1250057561099. The next prime is 1250057561261. The reversal of 1250057561201 is 1021657500521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1081649920576 + 168407640625 = 1040024^2 + 410375^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250057561201 - 2¹⁴ = 1250057544817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1250057561261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625028780600 + 625028780601.

It is an arithmetic number, because the mean of its divisors is an integer number (625028780601).

Almost surely, 2^{1250057561201} is an apocalyptic number.

It is an amenable number.

1250057561201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250057561201 is an equidigital number, since it uses as much as digits as its factorization.

1250057561201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21000, while the sum is 35.

The spelling of 1250057561201 in words is "one trillion, two hundred fifty billion, fifty-seven million, five hundred sixty-one thousand, two hundred one".