53149879 has 2 divisors, whose sum is σ = 53149880. Its totient is φ = 53149878.

The previous prime is 53149861. The next prime is 53149891. The reversal of 53149879 is 97894135.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53149879 - 2¹⁵ = 53117111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53149829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26574939 + 26574940.

It is an arithmetic number, because the mean of its divisors is an integer number (26574940).

Almost surely, 2^53149879 is an apocalyptic number.

53149879 is a deficient number, since it is larger than the sum of its proper divisors (1).

53149879 is an equidigital number, since it uses as much as digits as its factorization.

53149879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 46.

The square root of 53149879 is about 7290.3963541086. The cubic root of 53149879 is about 375.9823229014.

The spelling of 53149879 in words is "fifty-three million, one hundred forty-nine thousand, eight hundred seventy-nine".