52878552 has 32 divisors (see below), whose sum is σ = 133486080. Its totient is φ = 17454240.

The previous prime is 52878547. The next prime is 52878557. The reversal of 52878552 is 25587825.

It is an interprime number because it is at equal distance from previous prime (52878547) and next prime (52878557).

It is a super-2 number, since 2×52878552² = 5592282523233408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52878557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8224 + ... + 13167.

It is an arithmetic number, because the mean of its divisors is an integer number (4171440).

Almost surely, 2^52878552 is an apocalyptic number.

It is an amenable number.

52878552 is an abundant number, since it is smaller than the sum of its proper divisors (80607528).

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

52878552 is a wasteful number, since it uses less digits than its factorization.

52878552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21503 (or 21499 counting only the distinct ones).

The product of its digits is 224000, while the sum is 42.

The square root of 52878552 is about 7271.7640225739. The cubic root of 52878552 is about 375.3414419077.

The spelling of 52878552 in words is "fifty-two million, eight hundred seventy-eight thousand, five hundred fifty-two".