1525674055457 has 2 divisors, whose sum is σ = 1525674055458. Its totient is φ = 1525674055456.

The previous prime is 1525674055427. The next prime is 1525674055469. The reversal of 1525674055457 is 7545504765251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1256889874321 + 268784181136 = 1121111^2 + 518444^2 .

It is a cyclic number.

It is not a de Polignac number, because 1525674055457 - 2⁸ = 1525674055201 is a prime.

It is a super-2 number, since 2×1525674055457² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1525674055427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762837027728 + 762837027729.

It is an arithmetic number, because the mean of its divisors is an integer number (762837027729).

Almost surely, 2^{1525674055457} is an apocalyptic number.

It is an amenable number.

1525674055457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525674055457 is an equidigital number, since it uses as much as digits as its factorization.

1525674055457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29400000, while the sum is 56.

It can be divided in two parts, 152567 and 4055457, that added together give a palindrome (4208024).

The spelling of 1525674055457 in words is "one trillion, five hundred twenty-five billion, six hundred seventy-four million, fifty-five thousand, four hundred fifty-seven".