615448256 has 14 divisors (see below), whose sum is σ = 1221280260. Its totient is φ = 307724096.

The previous prime is 615448231. The next prime is 615448259. The reversal of 615448256 is 652844516.

It is not an unprimeable number, because it can be changed into a prime (615448259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4808126 + ... + 4808253.

Almost surely, 2^615448256 is an apocalyptic number.

It is an amenable number.

615448256 is a deficient number, since it is larger than the sum of its proper divisors (605832004).

615448256 is an equidigital number, since it uses as much as digits as its factorization.

615448256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9616391 (or 9616381 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The square root of 615448256 is about 24808.2296022913. The cubic root of 615448256 is about 850.6100607746.

The spelling of 615448256 in words is "six hundred fifteen million, four hundred forty-eight thousand, two hundred fifty-six".