61507064 has 16 divisors (see below), whose sum is σ = 115488720. Its totient is φ = 30710080.

The previous prime is 61507049. The next prime is 61507091. The reversal of 61507064 is 46070516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1037 + ... + 11139.

It is an arithmetic number, because the mean of its divisors is an integer number (7218045).

Almost surely, 2^61507064 is an apocalyptic number.

It is an amenable number.

61507064 is a deficient number, since it is larger than the sum of its proper divisors (53981656).

61507064 is a wasteful number, since it uses less digits than its factorization.

61507064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10870 (or 10866 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 61507064 is about 7842.6439419369. The cubic root of 61507064 is about 394.7374509078.

The spelling of 61507064 in words is "sixty-one million, five hundred seven thousand, sixty-four".