74722956025 has 27 divisors (see below), whose sum is σ = 96900927501. Its totient is φ = 57155250240.

The previous prime is 74722956023. The next prime is 74722956031. The reversal of 74722956025 is 52065922747.

It is a happy number.

The square root of 74722956025 is 273355.

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 4470393321 + 70252562704 = 66861^2 + 265052^2 .

It is not a de Polignac number, because 74722956025 - 2¹ = 74722956023 is a prime.

It is a super-2 number, since 2×74722956025² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74722956025.

It is not an unprimeable number, because it can be changed into a prime (74722956023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 31434637 + ... + 31437013.

Almost surely, 2^74722956025 is an apocalyptic number.

74722956025 is the 273355-th square number.

74722956025 is the 136678-th centered octagonal number.

It is an amenable number.

74722956025 is a deficient number, since it is larger than the sum of its proper divisors (22177971476).

74722956025 is an frugal number, since it uses more digits than its factorization.

74722956025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4810 (or 2405 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 49.

Multiplying 74722956025 by its sum of digits (49), we get a square (3661424845225 = 1913485²).

The spelling of 74722956025 in words is "seventy-four billion, seven hundred twenty-two million, nine hundred fifty-six thousand, twenty-five".