52257777 has 32 divisors (see below), whose sum is σ = 82432896. Its totient is φ = 29030400.

The previous prime is 52257773. The next prime is 52257787. The reversal of 52257777 is 77775225.

It is not a de Polignac number, because 52257777 - 2² = 52257773 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52257773) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77313 + ... + 77985.

It is an arithmetic number, because the mean of its divisors is an integer number (2576028).

Almost surely, 2^52257777 is an apocalyptic number.

It is an amenable number.

52257777 is a deficient number, since it is larger than the sum of its proper divisors (30175119).

52257777 is a wasteful number, since it uses less digits than its factorization.

52257777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881.

The product of its digits is 240100, while the sum is 42.

The square root of 52257777 is about 7228.9540737233. The cubic root of 52257777 is about 373.8668656886.

The spelling of 52257777 in words is "fifty-two million, two hundred fifty-seven thousand, seven hundred seventy-seven".