64342725 has 12 divisors (see below), whose sum is σ = 106380096. Its totient is φ = 34316080.

The previous prime is 64342723. The next prime is 64342727. The reversal of 64342725 is 52724346.

It is an interprime number because it is at equal distance from previous prime (64342723) and next prime (64342727).

It is not a de Polignac number, because 64342725 - 2¹ = 64342723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64342723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 428877 + ... + 429026.

It is an arithmetic number, because the mean of its divisors is an integer number (8865008).

Almost surely, 2^64342725 is an apocalyptic number.

It is an amenable number.

64342725 is a deficient number, since it is larger than the sum of its proper divisors (42037371).

64342725 is a wasteful number, since it uses less digits than its factorization.

64342725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857916 (or 857911 counting only the distinct ones).

The product of its digits is 40320, while the sum is 33.

The square root of 64342725 is about 8021.3917121657. The cubic root of 64342725 is about 400.7127396678.

The spelling of 64342725 in words is "sixty-four million, three hundred forty-two thousand, seven hundred twenty-five".