61696500 has 48 divisors (see below), whose sum is σ = 179664576. Its totient is φ = 16452000.

The previous prime is 61696499. The next prime is 61696517. The reversal of 61696500 is 569616.

It is a super-2 number, since 2×61696500² = 7612916224500000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19066 + ... + 22065.

It is an arithmetic number, because the mean of its divisors is an integer number (3743012).

Almost surely, 2^61696500 is an apocalyptic number.

61696500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61696500 is an abundant number, since it is smaller than the sum of its proper divisors (117968076).

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

61696500 is a wasteful number, since it uses less digits than its factorization.

61696500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41153 (or 41141 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 61696500 is about 7854.7119616190. The cubic root of 61696500 is about 395.1422870396.

The spelling of 61696500 in words is "sixty-one million, six hundred ninety-six thousand, five hundred".