52277240 has 32 divisors (see below), whose sum is σ = 118067760. Its totient is φ = 20832000.

The previous prime is 52277237. The next prime is 52277243. The reversal of 52277240 is 4277225.

It is an interprime number because it is at equal distance from previous prime (52277237) and next prime (52277243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52277243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8915 + ... + 13565.

Almost surely, 2^52277240 is an apocalyptic number.

It is an amenable number.

52277240 is an abundant number, since it is smaller than the sum of its proper divisors (65790520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52277240 is a wasteful number, since it uses less digits than its factorization.

52277240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4943 (or 4939 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 52277240 is about 7230.3001320830. The cubic root of 52277240 is about 373.9132745235.

The spelling of 52277240 in words is "fifty-two million, two hundred seventy-seven thousand, two hundred forty".