772244425 has 6 divisors (see below), whose sum is σ = 957583118. Its totient is φ = 617795520.

The previous prime is 772244423. The next prime is 772244437. The reversal of 772244425 is 524442277.

It can be written as a sum of positive squares in 3 ways, for example, as 241771401 + 530473024 = 15549^2 + 23032^2 .

It is not a de Polignac number, because 772244425 - 2¹ = 772244423 is a prime.

It is a super-2 number, since 2×772244425² = 1192722903887161250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (772244423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15444864 + ... + 15444913.

Almost surely, 2^772244425 is an apocalyptic number.

It is an amenable number.

772244425 is a deficient number, since it is larger than the sum of its proper divisors (185338693).

772244425 is a wasteful number, since it uses less digits than its factorization.

772244425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30889787 (or 30889782 counting only the distinct ones).

The product of its digits is 125440, while the sum is 37.

The square root of 772244425 is about 27789.2861549195. The cubic root of 772244425 is about 917.4553282529.

The spelling of 772244425 in words is "seven hundred seventy-two million, two hundred forty-four thousand, four hundred twenty-five".