61617488 has 40 divisors (see below), whose sum is σ = 122179680. Its totient is φ = 30096000.

The previous prime is 61617487. The next prime is 61617499. The reversal of 61617488 is 88471616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61617487) 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, 245363 + ... + 245613.

It is an arithmetic number, because the mean of its divisors is an integer number (3054492).

Almost surely, 2^61617488 is an apocalyptic number.

It is an amenable number.

61617488 is a deficient number, since it is larger than the sum of its proper divisors (60562192).

61617488 is a wasteful number, since it uses less digits than its factorization.

61617488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 549 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 61617488 is about 7849.6807578398. The cubic root of 61617488 is about 394.9735345191.

The spelling of 61617488 in words is "sixty-one million, six hundred seventeen thousand, four hundred eighty-eight".