61256610 has 48 divisors (see below), whose sum is σ = 168640056. Its totient is φ = 15373824.

The previous prime is 61256597. The next prime is 61256617. The reversal of 61256610 is 1665216.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59490369 + 1766241 = 7713^2 + 1329^2 .

It is not an unprimeable number, because it can be changed into a prime (61256617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18489 + ... + 21548.

Almost surely, 2^61256610 is an apocalyptic number.

61256610 is an abundant number, since it is smaller than the sum of its proper divisors (107383446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61256610 is a wasteful number, since it uses less digits than its factorization.

61256610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40067 (or 40064 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 61256610 is about 7826.6602072659. The cubic root of 61256610 is about 394.2009376423.

The spelling of 61256610 in words is "sixty-one million, two hundred fifty-six thousand, six hundred ten".