7225243655 has 32 divisors (see below), whose sum is σ = 10193541120. Its totient is φ = 4813159680.

The previous prime is 7225243631. The next prime is 7225243673. The reversal of 7225243655 is 5563425227.

It is not a de Polignac number, because 7225243655 - 2⁶ = 7225243591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332432 + ... + 353498.

It is an arithmetic number, because the mean of its divisors is an integer number (318548160).

Almost surely, 2^7225243655 is an apocalyptic number.

7225243655 is a deficient number, since it is larger than the sum of its proper divisors (2968297465).

7225243655 is a wasteful number, since it uses less digits than its factorization.

7225243655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21359.

The product of its digits is 504000, while the sum is 41.

The square root of 7225243655 is about 85001.4332526223. The cubic root of 7225243655 is about 1933.2328481431.

The spelling of 7225243655 in words is "seven billion, two hundred twenty-five million, two hundred forty-three thousand, six hundred fifty-five".