402775253 has 8 divisors (see below), whose sum is σ = 410077920. Its totient is φ = 395495280.

The previous prime is 402775223. The next prime is 402775291. The reversal of 402775253 is 352577204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402775253 - 2¹⁶ = 402709717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402775213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32426 + ... + 43092.

It is an arithmetic number, because the mean of its divisors is an integer number (51259740).

Almost surely, 2^402775253 is an apocalyptic number.

It is an amenable number.

402775253 is a deficient number, since it is larger than the sum of its proper divisors (7302667).

402775253 is a wasteful number, since it uses less digits than its factorization.

402775253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11347.

The product of its (nonzero) digits is 58800, while the sum is 35.

The square root of 402775253 is about 20069.2613964740. The cubic root of 402775253 is about 738.5063938546.

The spelling of 402775253 in words is "four hundred two million, seven hundred seventy-five thousand, two hundred fifty-three".