1253790554 has 4 divisors (see below), whose sum is σ = 1880685834. Its totient is φ = 626895276.

The previous prime is 1253790481. The next prime is 1253790581. The reversal of 1253790554 is 4550973521.

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., 1247714329 + 6076225 = 35323^2 + 2465^2 .

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, 313447637 + ... + 313447640.

Almost surely, 2^1253790554 is an apocalyptic number.

1253790554 is a deficient number, since it is larger than the sum of its proper divisors (626895280).

1253790554 is an equidigital number, since it uses as much as digits as its factorization.

1253790554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626895279.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 1253790554 is about 35408.9050098983. The cubic root of 1253790554 is about 1078.3051130285.

The spelling of 1253790554 in words is "one billion, two hundred fifty-three million, seven hundred ninety thousand, five hundred fifty-four".