52776157 has 4 divisors (see below), whose sum is σ = 60315616. Its totient is φ = 45236700.

The previous prime is 52776127. The next prime is 52776169. The reversal of 52776157 is 75167725.

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 52776157 - 2¹⁹ = 52251869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52776127) 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, 3769719 + ... + 3769732.

It is an arithmetic number, because the mean of its divisors is an integer number (15078904).

Almost surely, 2^52776157 is an apocalyptic number.

It is an amenable number.

52776157 is a deficient number, since it is larger than the sum of its proper divisors (7539459).

52776157 is an equidigital number, since it uses as much as digits as its factorization.

52776157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7539458.

The product of its digits is 102900, while the sum is 40.

The square root of 52776157 is about 7264.7200221344. The cubic root of 52776157 is about 375.0990126698.

The spelling of 52776157 in words is "fifty-two million, seven hundred seventy-six thousand, one hundred fifty-seven".