61925689 has 4 divisors (see below), whose sum is σ = 70772224. Its totient is φ = 53079156.

The previous prime is 61925687. The next prime is 61925707. The reversal of 61925689 is 98652916.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61925689 - 2¹ = 61925687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61925687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4423257 + ... + 4423270.

It is an arithmetic number, because the mean of its divisors is an integer number (17693056).

Almost surely, 2^61925689 is an apocalyptic number.

It is an amenable number.

61925689 is a deficient number, since it is larger than the sum of its proper divisors (8846535).

61925689 is an equidigital number, since it uses as much as digits as its factorization.

61925689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8846534.

The product of its digits is 233280, while the sum is 46.

The square root of 61925689 is about 7869.2877060125. The cubic root of 61925689 is about 395.6309714697.

It can be divided in two parts, 6192 and 5689, that added together give a square (11881 = 109²).

The spelling of 61925689 in words is "sixty-one million, nine hundred twenty-five thousand, six hundred eighty-nine".