15025856401 has 2 divisors, whose sum is σ = 15025856402. Its totient is φ = 15025856400.

The previous prime is 15025856389. The next prime is 15025856411. The reversal of 15025856401 is 10465852051.

It is a Cunningham number, because it is equal to 122580²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15025856400 + 1 = 122580^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 15025856401 - 2¹³ = 15025848209 is a prime.

It is not a weakly prime, because it can be changed into another prime (15025856411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7512928200 + 7512928201.

It is an arithmetic number, because the mean of its divisors is an integer number (7512928201).

Almost surely, 2^15025856401 is an apocalyptic number.

It is an amenable number.

15025856401 is a deficient number, since it is larger than the sum of its proper divisors (1).

15025856401 is an equidigital number, since it uses as much as digits as its factorization.

15025856401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48000, while the sum is 37.

The spelling of 15025856401 in words is "fifteen billion, twenty-five million, eight hundred fifty-six thousand, four hundred one".