61864501 has 8 divisors (see below), whose sum is σ = 63068544. Its totient is φ = 60669840.

The previous prime is 61864493. The next prime is 61864519. The reversal of 61864501 is 10546816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61864501 - 2³ = 61864493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61864541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11776 + ... + 16198.

It is an arithmetic number, because the mean of its divisors is an integer number (7883568).

Almost surely, 2^61864501 is an apocalyptic number.

It is an amenable number.

61864501 is a deficient number, since it is larger than the sum of its proper divisors (1204043).

61864501 is a wasteful number, since it uses less digits than its factorization.

61864501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4691.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 61864501 is about 7865.3989727159. The cubic root of 61864501 is about 395.5006225207.

The spelling of 61864501 in words is "sixty-one million, eight hundred sixty-four thousand, five hundred one".