1005625725 has 24 divisors (see below), whose sum is σ = 1790531232. Its totient is φ = 495076800.

The previous prime is 1005625679. The next prime is 1005625783. The reversal of 1005625725 is 5275265001.

It is not a de Polignac number, because 1005625725 - 2¹⁰ = 1005624701 is a prime.

It is a super-2 number, since 2×1005625725² = 2022566197563551250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514731 + ... + 516680.

It is an arithmetic number, because the mean of its divisors is an integer number (74605468).

Almost surely, 2^1005625725 is an apocalyptic number.

1005625725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1005625725 is a deficient number, since it is larger than the sum of its proper divisors (784905507).

1005625725 is a wasteful number, since it uses less digits than its factorization.

1005625725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031437 (or 1031432 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 1005625725 is about 31711.6023720026. The cubic root of 1005625725 is about 1001.8717360849.

The spelling of 1005625725 in words is "one billion, five million, six hundred twenty-five thousand, seven hundred twenty-five".