1252125626 has 4 divisors (see below), whose sum is σ = 1878188442. Its totient is φ = 626062812.

The previous prime is 1252125587. The next prime is 1252125647. The reversal of 1252125626 is 6265212521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1250683225 + 1442401 = 35365^2 + 1201^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1252125592 and 1252125601.

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 as a sum of consecutive naturals, namely, 313031405 + ... + 313031408.

Almost surely, 2^1252125626 is an apocalyptic number.

1252125626 is a deficient number, since it is larger than the sum of its proper divisors (626062816).

1252125626 is an equidigital number, since it uses as much as digits as its factorization.

1252125626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626062815.

The product of its digits is 14400, while the sum is 32.

The square root of 1252125626 is about 35385.3871817167. The cubic root of 1252125626 is about 1077.8276022179.

The spelling of 1252125626 in words is "one billion, two hundred fifty-two million, one hundred twenty-five thousand, six hundred twenty-six".