1625515252 has 12 divisors (see below), whose sum is σ = 2848714596. Its totient is φ = 811596800.

The previous prime is 1625515249. The next prime is 1625515259. The reversal of 1625515252 is 2525155261.

It can be written as a sum of positive squares in 2 ways, for example, as 1269211876 + 356303376 = 35626^2 + 18876^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625515259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287053 + ... + 292660.

It is an arithmetic number, because the mean of its divisors is an integer number (237392883).

Almost surely, 2^1625515252 is an apocalyptic number.

It is an amenable number.

1625515252 is a deficient number, since it is larger than the sum of its proper divisors (1223199344).

1625515252 is a wasteful number, since it uses less digits than its factorization.

1625515252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580418 (or 580416 counting only the distinct ones).

The product of its digits is 30000, while the sum is 34.

The square root of 1625515252 is about 40317.6791494749. The cubic root of 1625515252 is about 1175.7915902063.

The spelling of 1625515252 in words is "one billion, six hundred twenty-five million, five hundred fifteen thousand, two hundred fifty-two".