754092508225 has 81 divisors (see below), whose sum is σ = 1115557903017. Its totient is φ = 504191278080.

The previous prime is 754092508219. The next prime is 754092508243. The reversal of 754092508225 is 522805290457.

The square root of 754092508225 is 868385.

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

It can be written as a sum of positive squares in 4 ways, for example, as 212920413489 + 541172094736 = 461433^2 + 735644^2 .

It is not a de Polignac number, because 754092508225 - 2³ = 754092508217 is a prime.

It is a super-2 number, since 2×754092508225² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1306919137 + ... + 1306919713.

Almost surely, 2^754092508225 is an apocalyptic number.

754092508225 is the 868385-th square number.

754092508225 is the 434193-rd centered octagonal number.

It is an amenable number.

754092508225 is a deficient number, since it is larger than the sum of its proper divisors (361465394792).

754092508225 is an frugal number, since it uses more digits than its factorization.

754092508225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 49.

Multiplying 754092508225 by its sum of digits (49), we get a square (36950532903025 = 6078695²).

754092508225 divided by its sum of digits (49) gives a square (15389643025 = 124055²).

The spelling of 754092508225 in words is "seven hundred fifty-four billion, ninety-two million, five hundred eight thousand, two hundred twenty-five".