61245256 has 8 divisors (see below), whose sum is σ = 114834870. Its totient is φ = 30622624.

The previous prime is 61245253. The next prime is 61245257. The reversal of 61245256 is 65254216.

It can be written as a sum of positive squares in only one way, i.e., 60372900 + 872356 = 7770^2 + 934^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (61245253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3827821 + ... + 3827836.

Almost surely, 2^61245256 is an apocalyptic number.

It is an amenable number.

61245256 is a deficient number, since it is larger than the sum of its proper divisors (53589614).

61245256 is a wasteful number, since it uses less digits than its factorization.

61245256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7655663 (or 7655659 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 61245256 is about 7825.9348323379. The cubic root of 61245256 is about 394.1765809021.

The spelling of 61245256 in words is "sixty-one million, two hundred forty-five thousand, two hundred fifty-six".