1252705629 has 64 divisors (see below), whose sum is σ = 2031206400. Its totient is φ = 685702080.

The previous prime is 1252705613. The next prime is 1252705681. The reversal of 1252705629 is 9265072521.

It is not a de Polignac number, because 1252705629 - 2⁴ = 1252705613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252705529) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5518414 + ... + 5518640.

It is an arithmetic number, because the mean of its divisors is an integer number (31737600).

Almost surely, 2^1252705629 is an apocalyptic number.

It is an amenable number.

1252705629 is a deficient number, since it is larger than the sum of its proper divisors (778500771).

1252705629 is a wasteful number, since it uses less digits than its factorization.

1252705629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 1252705629 is about 35393.5817486730. The cubic root of 1252705629 is about 1077.9939983924.

The spelling of 1252705629 in words is "one billion, two hundred fifty-two million, seven hundred five thousand, six hundred twenty-nine".