650625407 has 4 divisors (see below), whose sum is σ = 652745016. Its totient is φ = 648505800.

The previous prime is 650625401. The next prime is 650625413. The reversal of 650625407 is 704526056.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (650625401) and next prime (650625413).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-650625407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650625401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1059344 + ... + 1059957.

It is an arithmetic number, because the mean of its divisors is an integer number (163186254).

Almost surely, 2^650625407 is an apocalyptic number.

650625407 is a deficient number, since it is larger than the sum of its proper divisors (2119609).

650625407 is a wasteful number, since it uses less digits than its factorization.

650625407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119608.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 650625407 is about 25507.3598594602. The cubic root of 650625407 is about 866.5168378237.

It can be divided in two parts, 6506 and 25407, that added together give a palindrome (31913).

The spelling of 650625407 in words is "six hundred fifty million, six hundred twenty-five thousand, four hundred seven".