402551455 has 8 divisors (see below), whose sum is σ = 488042352. Its totient is φ = 318720768.

The previous prime is 402551437. The next prime is 402551467. The reversal of 402551455 is 554155204.

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 402551455 - 2²¹ = 400454303 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 414517 + ... + 415486.

It is an arithmetic number, because the mean of its divisors is an integer number (61005294).

Almost surely, 2^402551455 is an apocalyptic number.

402551455 is a deficient number, since it is larger than the sum of its proper divisors (85490897).

402551455 is an equidigital number, since it uses as much as digits as its factorization.

402551455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830105.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 402551455 is about 20063.6849805812. The cubic root of 402551455 is about 738.3695873076.

The spelling of 402551455 in words is "four hundred two million, five hundred fifty-one thousand, four hundred fifty-five".