254521402 has 16 divisors (see below), whose sum is σ = 388626912. Its totient is φ = 124985520.

The previous prime is 254521357. The next prime is 254521411. The reversal of 254521402 is 204125452.

It is a super-2 number, since 2×254521402² = 129562288152091208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114433 + ... + 116635.

It is an arithmetic number, because the mean of its divisors is an integer number (24289182).

Almost surely, 2^254521402 is an apocalyptic number.

254521402 is a deficient number, since it is larger than the sum of its proper divisors (134105510).

254521402 is a wasteful number, since it uses less digits than its factorization.

254521402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 254521402 is about 15953.7269000068. The cubic root of 254521402 is about 633.7355971398.

Adding to 254521402 its reverse (204125452), we get a palindrome (458646854).

The spelling of 254521402 in words is "two hundred fifty-four million, five hundred twenty-one thousand, four hundred two".