1252515510 has 48 divisors (see below), whose sum is σ = 3368841840. Its totient is φ = 322486080.

The previous prime is 1252515479. The next prime is 1252515541. The reversal of 1252515510 is 155152521.

1252515510 is a `hidden beast` number, since 12 + 52 + 51 + 551 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1252515479) and next prime (1252515541).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237336 + ... + 242555.

It is an arithmetic number, because the mean of its divisors is an integer number (70184205).

Almost surely, 2^1252515510 is an apocalyptic number.

1252515510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252515510 is an abundant number, since it is smaller than the sum of its proper divisors (2116326330).

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

1252515510 is a wasteful number, since it uses less digits than its factorization.

1252515510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479933 (or 479930 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The square root of 1252515510 is about 35390.8958632019. The cubic root of 1252515510 is about 1077.9394611026.

The spelling of 1252515510 in words is "one billion, two hundred fifty-two million, five hundred fifteen thousand, five hundred ten".