1625126825 has 12 divisors (see below), whose sum is σ = 2303037120. Its totient is φ = 1114372560.

The previous prime is 1625126819. The next prime is 1625126827. The reversal of 1625126825 is 5286215261.

It is not a de Polignac number, because 1625126825 - 2⁴ = 1625126809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1625126827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4643045 + ... + 4643394.

It is an arithmetic number, because the mean of its divisors is an integer number (191919760).

Almost surely, 2^1625126825 is an apocalyptic number.

It is an amenable number.

1625126825 is a deficient number, since it is larger than the sum of its proper divisors (677910295).

1625126825 is an equidigital number, since it uses as much as digits as its factorization.

1625126825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9286456 (or 9286451 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 1625126825 is about 40312.8617813223. The cubic root of 1625126825 is about 1175.6979285029.

The spelling of 1625126825 in words is "one billion, six hundred twenty-five million, one hundred twenty-six thousand, eight hundred twenty-five".