61253808 has 80 divisors (see below), whose sum is σ = 197296896. Its totient is φ = 15909120.

The previous prime is 61253783. The next prime is 61253809. The reversal of 61253808 is 80835216.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (61253809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4591 + ... + 11982.

Almost surely, 2^61253808 is an apocalyptic number.

It is an amenable number.

61253808 is an abundant number, since it is smaller than the sum of its proper divisors (136043088).

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

61253808 is a wasteful number, since it uses less digits than its factorization.

61253808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16602 (or 16596 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 61253808 is about 7826.4812016640. The cubic root of 61253808 is about 394.1949270373.

The spelling of 61253808 in words is "sixty-one million, two hundred fifty-three thousand, eight hundred eight".