1001662725 has 48 divisors (see below), whose sum is σ = 1916702720. Its totient is φ = 452088000.

The previous prime is 1001662709. The next prime is 1001662733. The reversal of 1001662725 is 5272661001.

It is not a de Polignac number, because 1001662725 - 2⁴ = 1001662709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001662692 and 1001662701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29400 + ... + 53550.

Almost surely, 2^1001662725 is an apocalyptic number.

1001662725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1001662725 is a deficient number, since it is larger than the sum of its proper divisors (915039995).

1001662725 is a wasteful number, since it uses less digits than its factorization.

1001662725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24250 (or 24245 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1001662725 is about 31649.0556731161. The cubic root of 1001662725 is about 1000.5539347663.

The spelling of 1001662725 in words is "one billion, one million, six hundred sixty-two thousand, seven hundred twenty-five".