1525727412 has 144 divisors (see below), whose sum is σ = 4368034944. Its totient is φ = 444960000.

The previous prime is 1525727393. The next prime is 1525727431. The reversal of 1525727412 is 2147275251.

1525727412 is a `hidden beast` number, since 1 + 5 + 2 + 572 + 74 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (1525727393) and next prime (1525727431).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1479337 + ... + 1480367.

It is an arithmetic number, because the mean of its divisors is an integer number (30333576).

Almost surely, 2^1525727412 is an apocalyptic number.

1525727412 is a gapful number since it is divisible by the number (12) 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 1525727412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2184017472).

1525727412 is an abundant number, since it is smaller than the sum of its proper divisors (2842307532).

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

1525727412 is a wasteful number, since it uses less digits than its factorization.

1525727412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1185 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 1525727412 is about 39060.5608254669. The cubic root of 1525727412 is about 1151.2217417829.

The spelling of 1525727412 in words is "one billion, five hundred twenty-five million, seven hundred twenty-seven thousand, four hundred twelve".