64429255 has 16 divisors (see below), whose sum is σ = 84564000. Its totient is φ = 46735360.

The previous prime is 64429249. The next prime is 64429283. The reversal of 64429255 is 55292446.

It is not a de Polignac number, because 64429255 - 2⁵ = 64429223 is a prime.

It is a super-2 number, since 2×64429255² = 8302257799710050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23391 + ... + 25999.

It is an arithmetic number, because the mean of its divisors is an integer number (5285250).

Almost surely, 2^64429255 is an apocalyptic number.

64429255 is a deficient number, since it is larger than the sum of its proper divisors (20134745).

64429255 is a wasteful number, since it uses less digits than its factorization.

64429255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074.

The product of its digits is 86400, while the sum is 37.

The square root of 64429255 is about 8026.7836024151. The cubic root of 64429255 is about 400.8922893194.

The spelling of 64429255 in words is "sixty-four million, four hundred twenty-nine thousand, two hundred fifty-five".