225021251354 has 24 divisors (see below), whose sum is σ = 347444810748. Its totient is φ = 109298165760.

The previous prime is 225021251347. The next prime is 225021251369. The reversal of 225021251354 is 453152120522.

It can be written as a sum of positive squares in 6 ways, for example, as 208205127025 + 16816124329 = 456295^2 + 129677^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225021251354.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1690952 + ... + 1819164.

Almost surely, 2^225021251354 is an apocalyptic number.

225021251354 is a deficient number, since it is larger than the sum of its proper divisors (122423559394).

225021251354 is a wasteful number, since it uses less digits than its factorization.

225021251354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128930 (or 128893 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 225021251354 its reverse (453152120522), we get a palindrome (678173371876).

The spelling of 225021251354 in words is "two hundred twenty-five billion, twenty-one million, two hundred fifty-one thousand, three hundred fifty-four".