61117488 has 60 divisors (see below), whose sum is σ = 175682208. Its totient is φ = 19820160.

The previous prime is 61117487. The next prime is 61117501. The reversal of 61117488 is 88471116.

61117488 is a `hidden beast` number, since 61 + 117 + 488 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (61117487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408 + ... + 11063.

Almost surely, 2^61117488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61117488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87841104).

61117488 is an abundant number, since it is smaller than the sum of its proper divisors (114564720).

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

61117488 is a wasteful number, since it uses less digits than its factorization.

61117488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11522 (or 11513 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 61117488 is about 7817.7674562499. The cubic root of 61117488 is about 393.9022836512.

The spelling of 61117488 in words is "sixty-one million, one hundred seventeen thousand, four hundred eighty-eight".