61497256 has 32 divisors (see below), whose sum is σ = 118954440. Its totient is φ = 29783808.

The previous prime is 61497209. The next prime is 61497257. The reversal of 61497256 is 65279416.

It can be written as a sum of positive squares in 4 ways, for example, as 52794756 + 8702500 = 7266^2 + 2950^2 .

It is not an unprimeable number, because it can be changed into a prime (61497257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110130 + ... + 110686.

Almost surely, 2^61497256 is an apocalyptic number.

It is an amenable number.

61497256 is a deficient number, since it is larger than the sum of its proper divisors (57457184).

61497256 is a wasteful number, since it uses less digits than its factorization.

61497256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 969 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 61497256 is about 7842.0186176775. The cubic root of 61497256 is about 394.7164680023.

The spelling of 61497256 in words is "sixty-one million, four hundred ninety-seven thousand, two hundred fifty-six".