52577157 has 4 divisors (see below), whose sum is σ = 70102880. Its totient is φ = 35051436.

The previous prime is 52577153. The next prime is 52577171. The reversal of 52577157 is 75177525.

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 not a de Polignac number, because 52577157 - 2² = 52577153 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 (52577153) 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, 8762857 + ... + 8762862.

It is an arithmetic number, because the mean of its divisors is an integer number (17525720).

Almost surely, 2^52577157 is an apocalyptic number.

It is an amenable number.

52577157 is a deficient number, since it is larger than the sum of its proper divisors (17525723).

52577157 is a wasteful number, since it uses less digits than its factorization.

52577157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17525722.

The product of its digits is 85750, while the sum is 39.

The square root of 52577157 is about 7251.0107571290. The cubic root of 52577157 is about 374.6269641522.

The spelling of 52577157 in words is "fifty-two million, five hundred seventy-seven thousand, one hundred fifty-seven".