1252492245904 has 45 divisors (see below), whose sum is σ = 2473823108113. Its totient is φ = 614313766976.

The previous prime is 1252492245889. The next prime is 1252492245923. The reversal of 1252492245904 is 4095422942521.

The square root of 1252492245904 is 1119148.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 902918048400 + 349574197504 = 950220^2 + 591248^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 237256737 + ... + 237262015.

Almost surely, 2^{1252492245904} is an apocalyptic number.

1252492245904 is the 1119148-th square number.

It is an amenable number.

1252492245904 is a deficient number, since it is larger than the sum of its proper divisors (1221330862209).

1252492245904 is an frugal number, since it uses more digits than its factorization.

1252492245904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10672 (or 5334 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 49.

Multiplying 1252492245904 by its sum of digits (49), we get a square (61372120049296 = 7834036²).

The spelling of 1252492245904 in words is "one trillion, two hundred fifty-two billion, four hundred ninety-two million, two hundred forty-five thousand, nine hundred four".