25215222350 has 48 divisors (see below), whose sum is σ = 47733708240. Its totient is φ = 9907142400.

The previous prime is 25215222337. The next prime is 25215222377. The reversal of 25215222350 is 5322251252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4779314 + ... + 4784586.

It is an arithmetic number, because the mean of its divisors is an integer number (994452255).

Almost surely, 2^25215222350 is an apocalyptic number.

25215222350 is a deficient number, since it is larger than the sum of its proper divisors (22518485890).

25215222350 is a wasteful number, since it uses less digits than its factorization.

25215222350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6965 (or 6960 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 25215222350 in words is "twenty-five billion, two hundred fifteen million, two hundred twenty-two thousand, three hundred fifty".