650001625 has 32 divisors (see below), whose sum is σ = 998419968. Its totient is φ = 411422400.

The previous prime is 650001601. The next prime is 650001629. The reversal of 650001625 is 526100056.

It is not a de Polignac number, because 650001625 - 2⁷ = 650001497 is a prime.

It is a super-2 number, since 2×650001625² = 845004225005281250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 650001625.

It is not an unprimeable number, because it can be changed into a prime (650001629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17197 + ... + 39946.

It is an arithmetic number, because the mean of its divisors is an integer number (31200624).

Almost surely, 2^650001625 is an apocalyptic number.

650001625 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

650001625 is a deficient number, since it is larger than the sum of its proper divisors (348418343).

650001625 is a wasteful number, since it uses less digits than its factorization.

650001625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57178 (or 57168 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 650001625 is about 25495.1294368160. The cubic root of 650001625 is about 866.2398272062.

The spelling of 650001625 in words is "six hundred fifty million, one thousand, six hundred twenty-five".