44445400251253 has 16 divisors (see below), whose sum is σ = 45707834980080. Its totient is φ = 43200750067200.

The previous prime is 44445400251247. The next prime is 44445400251269. The reversal of 44445400251253 is 35215200454444.

It can be written as a sum of positive squares in 8 ways, for example, as 28705399338564 + 15740000912689 = 5357742^2 + 3967367^2 .

It is a cyclic number.

It is not a de Polignac number, because 44445400251253 - 2¹³ = 44445400243061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44445400051253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7100751 + ... + 11803027.

It is an arithmetic number, because the mean of its divisors is an integer number (2856739686255).

Almost surely, 2^{44445400251253} is an apocalyptic number.

It is an amenable number.

44445400251253 is a deficient number, since it is larger than the sum of its proper divisors (1262434728827).

44445400251253 is a wasteful number, since it uses less digits than its factorization.

44445400251253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4704168.

The product of its (nonzero) digits is 1536000, while the sum is 43.

The spelling of 44445400251253 in words is "forty-four trillion, four hundred forty-five billion, four hundred million, two hundred fifty-one thousand, two hundred fifty-three".