754521057225 has 72 divisors (see below), whose sum is σ = 1457764952280. Its totient is φ = 370849674240.

The previous prime is 754521057197. The next prime is 754521057247. The reversal of 754521057225 is 522750125457.

754521057225 is a `hidden beast` number, since 7 + 5 + 4 + 52 + 1 + 0 + 572 + 25 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 744843219849 + 9677837376 = 863043^2 + 98376^2 .

It is not a de Polignac number, because 754521057225 - 2¹² = 754521053129 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1582621 + ... + 2003429.

Almost surely, 2^754521057225 is an apocalyptic number.

754521057225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

754521057225 is a deficient number, since it is larger than the sum of its proper divisors (703243895055).

754521057225 is a wasteful number, since it uses less digits than its factorization.

754521057225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421451 (or 421443 counting only the distinct ones).

The product of its (nonzero) digits is 980000, while the sum is 45.

The spelling of 754521057225 in words is "seven hundred fifty-four billion, five hundred twenty-one million, fifty-seven thousand, two hundred twenty-five".