253372445 has 16 divisors (see below), whose sum is σ = 306782640. Its totient is φ = 200884224.

The previous prime is 253372417. The next prime is 253372459. The reversal of 253372445 is 544273352.

It can be written as a sum of positive squares in 8 ways, for example, as 24334489 + 229037956 = 4933^2 + 15134^2 .

It is a cyclic number.

It is not a de Polignac number, because 253372445 - 2¹⁸ = 253110301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345299 + ... + 346031.

It is an arithmetic number, because the mean of its divisors is an integer number (19173915).

Almost surely, 2^253372445 is an apocalyptic number.

It is an amenable number.

253372445 is a deficient number, since it is larger than the sum of its proper divisors (53410195).

253372445 is a wasteful number, since it uses less digits than its factorization.

253372445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264.

The product of its digits is 100800, while the sum is 35.

The square root of 253372445 is about 15917.6771232489. The cubic root of 253372445 is about 632.7805584589.

The spelling of 253372445 in words is "two hundred fifty-three million, three hundred seventy-two thousand, four hundred forty-five".