1523650725 has 36 divisors (see below), whose sum is σ = 2731957956. Its totient is φ = 811741440.

The previous prime is 1523650703. The next prime is 1523650727. The reversal of 1523650725 is 5270563251.

1523650725 is a `hidden beast` number, since 1 + 523 + 65 + 0 + 72 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 487261476 + 1036389249 = 22074^2 + 32193^2 .

It is not a de Polignac number, because 1523650725 - 2⁵ = 1523650693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1523650725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1523650727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 243739 + ... + 249911.

It is an arithmetic number, because the mean of its divisors is an integer number (75887721).

Almost surely, 2^1523650725 is an apocalyptic number.

1523650725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1523650725 is a deficient number, since it is larger than the sum of its proper divisors (1208307231).

1523650725 is a wasteful number, since it uses less digits than its factorization.

1523650725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7286 (or 7278 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 1523650725 is about 39033.9688604682. The cubic root of 1523650725 is about 1150.6991904388.

The spelling of 1523650725 in words is "one billion, five hundred twenty-three million, six hundred fifty thousand, seven hundred twenty-five".