531252678 has 32 divisors (see below), whose sum is σ = 1168693632. Its totient is φ = 160983240.

The previous prime is 531252661. The next prime is 531252707. The reversal of 531252678 is 876252135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25276 + ... + 41247.

It is an arithmetic number, because the mean of its divisors is an integer number (36521676).

Almost surely, 2^531252678 is an apocalyptic number.

531252678 is an abundant number, since it is smaller than the sum of its proper divisors (637440954).

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

531252678 is a wasteful number, since it uses less digits than its factorization.

531252678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66561 (or 66539 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 531252678 is about 23048.9192371356. The cubic root of 531252678 is about 809.9043112081.

The spelling of 531252678 in words is "five hundred thirty-one million, two hundred fifty-two thousand, six hundred seventy-eight".