725162749 has 2 divisors, whose sum is σ = 725162750. Its totient is φ = 725162748.

The previous prime is 725162723. The next prime is 725162771. The reversal of 725162749 is 947261527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 364542649 + 360620100 = 19093^2 + 18990^2 .

It is a cyclic number.

It is not a de Polignac number, because 725162749 - 2¹⁵ = 725129981 is a prime.

It is a super-2 number, since 2×725162749² = 1051722025074474002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725160749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362581374 + 362581375.

It is an arithmetic number, because the mean of its divisors is an integer number (362581375).

Almost surely, 2^725162749 is an apocalyptic number.

It is an amenable number.

725162749 is a deficient number, since it is larger than the sum of its proper divisors (1).

725162749 is an equidigital number, since it uses as much as digits as its factorization.

725162749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 725162749 is about 26928.8460391455. The cubic root of 725162749 is about 898.4181055578.

The spelling of 725162749 in words is "seven hundred twenty-five million, one hundred sixty-two thousand, seven hundred forty-nine".