1525741272 has 320 divisors, whose sum is σ = 4942317600. Its totient is φ = 439084800.

The previous prime is 1525741253. The next prime is 1525741277. The reversal of 1525741272 is 2721475251.

1525741272 is a `hidden beast` number, since 1 + 5 + 2 + 574 + 12 + 72 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525741277) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 25012122 + ... + 25012182.

Almost surely, 2^1525741272 is an apocalyptic number.

1525741272 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 1525741272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2471158800).

1525741272 is an abundant number, since it is smaller than the sum of its proper divisors (3416576328).

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

1525741272 is a wasteful number, since it uses less digits than its factorization.

1525741272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 106 counting only the distinct ones).

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

The square root of 1525741272 is about 39060.7382418715. The cubic root of 1525741272 is about 1151.2252277452.

The spelling of 1525741272 in words is "one billion, five hundred twenty-five million, seven hundred forty-one thousand, two hundred seventy-two".