1250405252 has 6 divisors (see below), whose sum is σ = 2188209198. Its totient is φ = 625202624.

The previous prime is 1250405239. The next prime is 1250405279. The reversal of 1250405252 is 2525040521.

It can be written as a sum of positive squares in only one way, i.e., 974313796 + 276091456 = 31214^2 + 16616^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156300653 + ... + 156300660.

It is an arithmetic number, because the mean of its divisors is an integer number (364701533).

Almost surely, 2^1250405252 is an apocalyptic number.

It is an amenable number.

1250405252 is a deficient number, since it is larger than the sum of its proper divisors (937803946).

1250405252 is a wasteful number, since it uses less digits than its factorization.

1250405252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312601317 (or 312601315 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 1250405252 is about 35361.0697236382. The cubic root of 1250405252 is about 1077.3337443002. Note that the first 3 decimals are identical.

Adding to 1250405252 its reverse (2525040521), we get a palindrome (3775445773).

The spelling of 1250405252 in words is "one billion, two hundred fifty million, four hundred five thousand, two hundred fifty-two".