61500604 has 24 divisors (see below), whose sum is σ = 118516608. Its totient is φ = 27691440.

The previous prime is 61500599. The next prime is 61500629. The reversal of 61500604 is 40600516.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1824 + ... + 11239.

It is an arithmetic number, because the mean of its divisors is an integer number (4938192).

Almost surely, 2^61500604 is an apocalyptic number.

It is an amenable number.

61500604 is a deficient number, since it is larger than the sum of its proper divisors (57016004).

61500604 is a wasteful number, since it uses less digits than its factorization.

61500604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13185 (or 13183 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 61500604 is about 7842.2320802180. The cubic root of 61500604 is about 394.7236308517.

The spelling of 61500604 in words is "sixty-one million, five hundred thousand, six hundred four".