1252553715 has 24 divisors (see below), whose sum is σ = 2481249888. Its totient is φ = 572595840.

The previous prime is 1252553707. The next prime is 1252553767. The reversal of 1252553715 is 5173552521.

1252553715 is a `hidden beast` number, since 12 + 525 + 53 + 71 + 5 = 666.

It is not a de Polignac number, because 1252553715 - 2³ = 1252553707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1252553715.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1987866 + ... + 1988495.

It is an arithmetic number, because the mean of its divisors is an integer number (103385412).

Almost surely, 2^1252553715 is an apocalyptic number.

1252553715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1252553715 is a deficient number, since it is larger than the sum of its proper divisors (1228696173).

1252553715 is a wasteful number, since it uses less digits than its factorization.

1252553715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976379 (or 3976376 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 1252553715 is about 35391.4356165443. The cubic root of 1252553715 is about 1077.9504209824.

The spelling of 1252553715 in words is "one billion, two hundred fifty-two million, five hundred fifty-three thousand, seven hundred fifteen".