749577253 has 2 divisors, whose sum is σ = 749577254. Its totient is φ = 749577252.

The previous prime is 749577217. The next prime is 749577319. The reversal of 749577253 is 352775947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443397249 + 306180004 = 21057^2 + 17498^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749577253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 749577197 and 749577206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749577203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374788626 + 374788627.

It is an arithmetic number, because the mean of its divisors is an integer number (374788627).

Almost surely, 2^749577253 is an apocalyptic number.

It is an amenable number.

749577253 is a deficient number, since it is larger than the sum of its proper divisors (1).

749577253 is an equidigital number, since it uses as much as digits as its factorization.

749577253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1852200, while the sum is 49.

The square root of 749577253 is about 27378.4085183927. The cubic root of 749577253 is about 908.3895571591.

It can be divided in two parts, 7495 and 77253, that added together give a palindrome (84748).

The spelling of 749577253 in words is "seven hundred forty-nine million, five hundred seventy-seven thousand, two hundred fifty-three".