52157719 has 2 divisors, whose sum is σ = 52157720. Its totient is φ = 52157718.

The previous prime is 52157663. The next prime is 52157741. The reversal of 52157719 is 91775125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52157719 - 2⁷ = 52157591 is a prime.

It is a super-2 number, since 2×52157719² = 5440855302565922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52157789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26078859 + 26078860.

It is an arithmetic number, because the mean of its divisors is an integer number (26078860).

Almost surely, 2^52157719 is an apocalyptic number.

52157719 is a deficient number, since it is larger than the sum of its proper divisors (1).

52157719 is an equidigital number, since it uses as much as digits as its factorization.

52157719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22050, while the sum is 37.

The square root of 52157719 is about 7222.0301162485. The cubic root of 52157719 is about 373.6280988568.

The spelling of 52157719 in words is "fifty-two million, one hundred fifty-seven thousand, seven hundred nineteen".