64625229 has 16 divisors (see below), whose sum is σ = 96445440. Its totient is φ = 42766560.

The previous prime is 64625219. The next prime is 64625257. The reversal of 64625229 is 92252646.

64625229 is a `hidden beast` number, since 6 + 4 + 625 + 2 + 29 = 666.

It is not a de Polignac number, because 64625229 - 2⁹ = 64624717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64625193 and 64625202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64625219) 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, 5037 + ... + 12434.

It is an arithmetic number, because the mean of its divisors is an integer number (6027840).

Almost surely, 2^64625229 is an apocalyptic number.

It is an amenable number.

64625229 is a deficient number, since it is larger than the sum of its proper divisors (31820211).

64625229 is a wasteful number, since it uses less digits than its factorization.

64625229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17617 (or 17611 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 64625229 is about 8038.9818385166. The cubic root of 64625229 is about 401.2983416296.

The spelling of 64625229 in words is "sixty-four million, six hundred twenty-five thousand, two hundred twenty-nine".