64725453 has 32 divisors (see below), whose sum is σ = 104993280. Its totient is φ = 39165120.

The previous prime is 64725431. The next prime is 64725461. The reversal of 64725453 is 35452746.

64725453 is a `hidden beast` number, since 647 + 2 + 5 + 4 + 5 + 3 = 666.

It is not a de Polignac number, because 64725453 - 2⁵ = 64725421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64725403) 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, 19900 + ... + 22922.

It is an arithmetic number, because the mean of its divisors is an integer number (3281040).

Almost surely, 2^64725453 is an apocalyptic number.

It is an amenable number.

64725453 is a deficient number, since it is larger than the sum of its proper divisors (40267827).

64725453 is a wasteful number, since it uses less digits than its factorization.

64725453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106 (or 3100 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 64725453 is about 8045.2130487638. The cubic root of 64725453 is about 401.5056855825.

The spelling of 64725453 in words is "sixty-four million, seven hundred twenty-five thousand, four hundred fifty-three".