455025781 has 8 divisors (see below), whose sum is σ = 536804864. Its totient is φ = 377440560.

The previous prime is 455025773. The next prime is 455025787. The reversal of 455025781 is 187520554.

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

It is not a de Polignac number, because 455025781 - 2³ = 455025773 is a prime.

It is a super-2 number, since 2×455025781² = 414096922749319922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 455025781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455025787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1048230 + ... + 1048663.

It is an arithmetic number, because the mean of its divisors is an integer number (67100608).

Almost surely, 2^455025781 is an apocalyptic number.

It is an amenable number.

455025781 is a deficient number, since it is larger than the sum of its proper divisors (81779083).

455025781 is a wasteful number, since it uses less digits than its factorization.

455025781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096931.

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 455025781 is about 21331.3333151025. Note that the first 4 decimals coincide. The cubic root of 455025781 is about 769.1516946555.

The spelling of 455025781 in words is "four hundred fifty-five million, twenty-five thousand, seven hundred eighty-one".