61680501 has 16 divisors (see below), whose sum is σ = 91499520. Its totient is φ = 41065920.

The previous prime is 61680481. The next prime is 61680527. The reversal of 61680501 is 10508616.

It is not a de Polignac number, because 61680501 - 2⁷ = 61680373 is a prime.

It is a super-2 number, since 2×61680501² = 7608968407222002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61680581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38941 + ... + 40493.

It is an arithmetic number, because the mean of its divisors is an integer number (5718720).

Almost surely, 2^61680501 is an apocalyptic number.

It is an amenable number.

61680501 is a deficient number, since it is larger than the sum of its proper divisors (29819019).

61680501 is a wasteful number, since it uses less digits than its factorization.

61680501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033 (or 3027 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 61680501 is about 7853.6934623144. The cubic root of 61680501 is about 395.1081282787.

The spelling of 61680501 in words is "sixty-one million, six hundred eighty thousand, five hundred one".