61505005502 has 48 divisors (see below), whose sum is σ = 99677057760. Its totient is φ = 28407532032.

The previous prime is 61505005477. The next prime is 61505005531. The reversal of 61505005502 is 20550050516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8623874 + ... + 8631002.

It is an arithmetic number, because the mean of its divisors is an integer number (2076605370).

Almost surely, 2^61505005502 is an apocalyptic number.

61505005502 is a deficient number, since it is larger than the sum of its proper divisors (38172052258).

61505005502 is a wasteful number, since it uses less digits than its factorization.

61505005502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7365 (or 7328 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 61505005502 in words is "sixty-one billion, five hundred five million, five thousand, five hundred two".