4640545125 has 24 divisors (see below), whose sum is σ = 8365358040. Its totient is φ = 2474956800.

The previous prime is 4640545109. The next prime is 4640545139. The reversal of 4640545125 is 5215450464.

4640545125 is a `hidden beast` number, since 4 + 640 + 5 + 4 + 5 + 1 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 38415204 + 4602129921 = 6198^2 + 67839^2 .

It is not a de Polignac number, because 4640545125 - 2⁴ = 4640545109 is a prime.

It is a super-2 number, since 2×4640545125² = 43069318114322531250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4640545125.

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, 2061340 + ... + 2063589.

It is an arithmetic number, because the mean of its divisors is an integer number (348556585).

Almost surely, 2^4640545125 is an apocalyptic number.

4640545125 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4640545125 is a deficient number, since it is larger than the sum of its proper divisors (3724812915).

4640545125 is a wasteful number, since it uses less digits than its factorization.

4640545125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124950 (or 4124937 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The square root of 4640545125 is about 68121.5467014659. The cubic root of 4640545125 is about 1667.9754980184.

Adding to 4640545125 its reverse (5215450464), we get a palindrome (9855995589).

The spelling of 4640545125 in words is "four billion, six hundred forty million, five hundred forty-five thousand, one hundred twenty-five".