2025521965904 has 20 divisors (see below), whose sum is σ = 3924473234676. Its totient is φ = 1012754679552.

The previous prime is 2025521965853. The next prime is 2025521966009. The reversal of 2025521965904 is 4095691255202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1568205198400 + 457316767504 = 1252280^2 + 676252^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3315452 + ... + 3878564.

Almost surely, 2^{2025521965904} is an apocalyptic number.

It is an amenable number.

2025521965904 is a deficient number, since it is larger than the sum of its proper divisors (1898951268772).

2025521965904 is a wasteful number, since it uses less digits than its factorization.

2025521965904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787934 (or 787928 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 50.

The spelling of 2025521965904 in words is "two trillion, twenty-five billion, five hundred twenty-one million, nine hundred sixty-five thousand, nine hundred four".