64725241 has 16 divisors (see below), whose sum is σ = 76656640. Its totient is φ = 53479440.

The previous prime is 64725223. The next prime is 64725257. The reversal of 64725241 is 14252746.

64725241 = T₁₁₃₃ + T₁₁₃₄ + ... + T₁₂₂₅.

It is not a de Polignac number, because 64725241 - 2⁷ = 64725113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64725281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81850 + ... + 82636.

It is an arithmetic number, because the mean of its divisors is an integer number (4791040).

Almost surely, 2^64725241 is an apocalyptic number.

It is an amenable number.

64725241 is a deficient number, since it is larger than the sum of its proper divisors (11931399).

64725241 is a wasteful number, since it uses less digits than its factorization.

64725241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204.

The product of its digits is 13440, while the sum is 31.

The square root of 64725241 is about 8045.1998732163. The cubic root of 64725241 is about 401.5052472217.

Adding to 64725241 its reverse (14252746), we get a palindrome (78977987).

The spelling of 64725241 in words is "sixty-four million, seven hundred twenty-five thousand, two hundred forty-one".