52525278 has 24 divisors (see below), whose sum is σ = 122559528. Its totient is φ = 16161552.

The previous prime is 52525267. The next prime is 52525289. The reversal of 52525278 is 87252525.

It is an interprime number because it is at equal distance from previous prime (52525267) and next prime (52525289).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112000 + ... + 112467.

It is an arithmetic number, because the mean of its divisors is an integer number (5106647).

Almost surely, 2^52525278 is an apocalyptic number.

52525278 is an abundant number, since it is smaller than the sum of its proper divisors (70034250).

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

52525278 is a wasteful number, since it uses less digits than its factorization.

52525278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224488 (or 224485 counting only the distinct ones).

The product of its digits is 56000, while the sum is 36.

The square root of 52525278 is about 7247.4325108965. The cubic root of 52525278 is about 374.5037061362.

The spelling of 52525278 in words is "fifty-two million, five hundred twenty-five thousand, two hundred seventy-eight".