402253556 has 6 divisors (see below), whose sum is σ = 703943730. Its totient is φ = 201126776.

The previous prime is 402253549. The next prime is 402253571. The reversal of 402253556 is 655352204.

It can be written as a sum of positive squares in only one way, i.e., 330003556 + 72250000 = 18166^2 + 8500^2 .

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, 50281691 + ... + 50281698.

It is an arithmetic number, because the mean of its divisors is an integer number (117323955).

Almost surely, 2^402253556 is an apocalyptic number.

It is an amenable number.

402253556 is a deficient number, since it is larger than the sum of its proper divisors (301690174).

402253556 is a wasteful number, since it uses less digits than its factorization.

402253556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100563393 (or 100563391 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 402253556 is about 20056.2597709543. The cubic root of 402253556 is about 738.1874045167.

The spelling of 402253556 in words is "four hundred two million, two hundred fifty-three thousand, five hundred fifty-six".