1525645652 has 12 divisors (see below), whose sum is σ = 2689088640. Its totient is φ = 757334616.

The previous prime is 1525645613. The next prime is 1525645673. The reversal of 1525645652 is 2565465251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1371428 + ... + 1372539.

It is an arithmetic number, because the mean of its divisors is an integer number (224090720).

Almost surely, 2^1525645652 is an apocalyptic number.

It is an amenable number.

1525645652 is a deficient number, since it is larger than the sum of its proper divisors (1163442988).

1525645652 is a wasteful number, since it uses less digits than its factorization.

1525645652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744110 (or 2744108 counting only the distinct ones).

The product of its digits is 360000, while the sum is 41.

The square root of 1525645652 is about 39059.5142314904. The cubic root of 1525645652 is about 1151.2011776965.

The spelling of 1525645652 in words is "one billion, five hundred twenty-five million, six hundred forty-five thousand, six hundred fifty-two".