1252399562 has 8 divisors (see below), whose sum is σ = 1892940192. Its totient is φ = 621419500.

The previous prime is 1252399559. The next prime is 1252399567. The reversal of 1252399562 is 2659932521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1252399567) 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, 2389814 + ... + 2390337.

It is an arithmetic number, because the mean of its divisors is an integer number (236617524).

Almost surely, 2^1252399562 is an apocalyptic number.

1252399562 is a deficient number, since it is larger than the sum of its proper divisors (640540630).

1252399562 is a wasteful number, since it uses less digits than its factorization.

1252399562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780284.

The product of its digits is 291600, while the sum is 44.

The square root of 1252399562 is about 35389.2577203874. The cubic root of 1252399562 is about 1077.9061977004.

The spelling of 1252399562 in words is "one billion, two hundred fifty-two million, three hundred ninety-nine thousand, five hundred sixty-two".