52878492 has 36 divisors (see below), whose sum is σ = 135364320. Its totient is φ = 17402112.

The previous prime is 52878491. The next prime is 52878493. The reversal of 52878492 is 29487825.

It is an interprime number because it is at equal distance from previous prime (52878491) and next prime (52878493).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×52878492² = 5592269832388128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52878491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6453 + ... + 12140.

It is an arithmetic number, because the mean of its divisors is an integer number (3760120).

Almost surely, 2^52878492 is an apocalyptic number.

It is an amenable number.

52878492 is an abundant number, since it is smaller than the sum of its proper divisors (82485828).

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

52878492 is a wasteful number, since it uses less digits than its factorization.

52878492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18682 (or 18677 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 52878492 is about 7271.7598970263. The cubic root of 52878492 is about 375.3412999440.

The spelling of 52878492 in words is "fifty-two million, eight hundred seventy-eight thousand, four hundred ninety-two".