52077757 has 4 divisors (see below), whose sum is σ = 52142940. Its totient is φ = 52012576.

The previous prime is 52077743. The next prime is 52077761. The reversal of 52077757 is 75777025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43903876 + 8173881 = 6626^2 + 2859^2 .

It is a cyclic number.

It is not a de Polignac number, because 52077757 - 2⁷ = 52077629 is a prime.

It is a super-3 number, since 3×52077757³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52075757) 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, 31378 + ... + 32995.

It is an arithmetic number, because the mean of its divisors is an integer number (13035735).

Almost surely, 2^52077757 is an apocalyptic number.

It is an amenable number.

52077757 is a deficient number, since it is larger than the sum of its proper divisors (65183).

52077757 is an equidigital number, since it uses as much as digits as its factorization.

52077757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65182.

The product of its (nonzero) digits is 120050, while the sum is 40.

The square root of 52077757 is about 7216.4920148227. The cubic root of 52077757 is about 373.4370671739.

The spelling of 52077757 in words is "fifty-two million, seventy-seven thousand, seven hundred fifty-seven".