525355012 has 96 divisors (see below), whose sum is σ = 1215551232. Its totient is φ = 192761856.

The previous prime is 525355009. The next prime is 525355043. The reversal of 525355012 is 210553525.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 451143 + ... + 452305.

It is an arithmetic number, because the mean of its divisors is an integer number (12661992).

Almost surely, 2^525355012 is an apocalyptic number.

525355012 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525355012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607775616).

525355012 is an abundant number, since it is smaller than the sum of its proper divisors (690196220).

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

525355012 is a wasteful number, since it uses less digits than its factorization.

525355012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277 (or 1275 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 525355012 is about 22920.6241625310. The cubic root of 525355012 is about 806.8961190346.

The spelling of 525355012 in words is "five hundred twenty-five million, three hundred fifty-five thousand, twelve".