1604034915025 has 27 divisors (see below), whose sum is σ = 2055485972379. Its totient is φ = 1241681502000.

The previous prime is 1604034915023. The next prime is 1604034915053. The reversal of 1604034915025 is 5205194304061.

The square root of 1604034915025 is 1266505.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 577452569409 + 1026582345616 = 759903^2 + 1013204^2 .

It is not a de Polignac number, because 1604034915025 - 2¹ = 1604034915023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1604034915023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 196304190 + ... + 196312360.

Almost surely, 2^{1604034915025} is an apocalyptic number.

1604034915025 is the 1266505-th square number.

1604034915025 is the 633253-rd centered octagonal number.

It is an amenable number.

1604034915025 is a deficient number, since it is larger than the sum of its proper divisors (451451057354).

1604034915025 is an frugal number, since it uses more digits than its factorization.

1604034915025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16414 (or 8207 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 1604034915025 in words is "one trillion, six hundred four billion, thirty-four million, nine hundred fifteen thousand, twenty-five".