749133525625 has 45 divisors (see below), whose sum is σ = 949193677201. Its totient is φ = 591049712000.

The previous prime is 749133525611. The next prime is 749133525649. The reversal of 749133525625 is 526525331947.

The square root of 749133525625 is 865525.

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

It can be written as a sum of positive squares in 22 ways, for example, as 294107728489 + 455025797136 = 542317^2 + 674556^2 .

It is not a de Polignac number, because 749133525625 - 2¹⁵ = 749133492857 is a prime.

It is a super-2 number, since 2×749133525625² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1925792931 + ... + 1925793319.

Almost surely, 2^749133525625 is an apocalyptic number.

749133525625 is the 865525-th square number.

749133525625 is the 432763-rd centered octagonal number.

It is an amenable number.

749133525625 is a deficient number, since it is larger than the sum of its proper divisors (200060151576).

749133525625 is an frugal number, since it uses more digits than its factorization.

749133525625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 483 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 52.

The spelling of 749133525625 in words is "seven hundred forty-nine billion, one hundred thirty-three million, five hundred twenty-five thousand, six hundred twenty-five".