71925619 has 2 divisors, whose sum is σ = 71925620. Its totient is φ = 71925618.

The previous prime is 71925587. The next prime is 71925641. The reversal of 71925619 is 91652917.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71925619 - 2⁵ = 71925587 is a prime.

It is a super-2 number, since 2×71925619² = 10346589337066322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71925019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35962809 + 35962810.

It is an arithmetic number, because the mean of its divisors is an integer number (35962810).

Almost surely, 2^71925619 is an apocalyptic number.

71925619 is a deficient number, since it is larger than the sum of its proper divisors (1).

71925619 is an equidigital number, since it uses as much as digits as its factorization.

71925619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 40.

The square root of 71925619 is about 8480.8972992249. The cubic root of 71925619 is about 415.8734571809.

The spelling of 71925619 in words is "seventy-one million, nine hundred twenty-five thousand, six hundred nineteen".