61600501 has 2 divisors, whose sum is σ = 61600502. Its totient is φ = 61600500.

The previous prime is 61600499. The next prime is 61600507. The reversal of 61600501 is 10500616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37088100 + 24512401 = 6090^2 + 4951^2 .

It is a cyclic number.

It is not a de Polignac number, because 61600501 - 2¹ = 61600499 is a prime.

Together with 61600499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61600507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30800250 + 30800251.

It is an arithmetic number, because the mean of its divisors is an integer number (30800251).

Almost surely, 2^61600501 is an apocalyptic number.

It is an amenable number.

61600501 is a deficient number, since it is larger than the sum of its proper divisors (1).

61600501 is an equidigital number, since it uses as much as digits as its factorization.

61600501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 61600501 is about 7848.5986647299. The cubic root of 61600501 is about 394.9372351269.

The spelling of 61600501 in words is "sixty-one million, six hundred thousand, five hundred one".