402555254 has 4 divisors (see below), whose sum is σ = 603832884. Its totient is φ = 201277626.

The previous prime is 402555233. The next prime is 402555281. The reversal of 402555254 is 452555204.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 402555254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100638812 + ... + 100638815.

It is an arithmetic number, because the mean of its divisors is an integer number (150958221).

Almost surely, 2^402555254 is an apocalyptic number.

402555254 is a deficient number, since it is larger than the sum of its proper divisors (201277630).

402555254 is a wasteful number, since it uses less digits than its factorization.

402555254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201277629.

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 402555254 is about 20063.7796538937. The cubic root of 402555254 is about 738.3719100394.

The spelling of 402555254 in words is "four hundred two million, five hundred fifty-five thousand, two hundred fifty-four".