7225778553 has 16 divisors (see below), whose sum is σ = 11017163136. Its totient is φ = 4126596480.

The previous prime is 7225778471. The next prime is 7225778579. The reversal of 7225778553 is 3558775227.

It is not a de Polignac number, because 7225778553 - 2²⁸ = 6957343097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7225778496 and 7225778505.

It is not an unprimeable number, because it can be changed into a prime (7225778653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63826 + ... + 136107.

It is an arithmetic number, because the mean of its divisors is an integer number (688572696).

Almost surely, 2^7225778553 is an apocalyptic number.

It is an amenable number.

7225778553 is a deficient number, since it is larger than the sum of its proper divisors (3791384583).

7225778553 is a wasteful number, since it uses less digits than its factorization.

7225778553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201664.

The product of its digits is 4116000, while the sum is 51.

The square root of 7225778553 is about 85004.5796001604. The cubic root of 7225778553 is about 1933.2805538868.

The spelling of 7225778553 in words is "seven billion, two hundred twenty-five million, seven hundred seventy-eight thousand, five hundred fifty-three".