61726560 has 96 divisors (see below), whose sum is σ = 222227712. Its totient is φ = 14108160.

The previous prime is 61726523. The next prime is 61726579. The reversal of 61726560 is 6562716.

It is a tau number, because it is divible by the number of its divisors (96).

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, 5826 + ... + 12545.

It is an arithmetic number, because the mean of its divisors is an integer number (2314872).

Almost surely, 2^61726560 is an apocalyptic number.

61726560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61726560 is an abundant number, since it is smaller than the sum of its proper divisors (160501152).

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

61726560 is a wasteful number, since it uses less digits than its factorization.

61726560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18396 (or 18388 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 61726560 is about 7856.6252297026. The cubic root of 61726560 is about 395.2064508555.

The spelling of 61726560 in words is "sixty-one million, seven hundred twenty-six thousand, five hundred sixty".