280278052553 has 8 divisors (see below), whose sum is σ = 289701130560. Its totient is φ = 271010728080.

The previous prime is 280278052547. The next prime is 280278052591. The reversal of 280278052553 is 355250872082.

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 280278052553 - 2⁸ = 280278052297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 280278052498 and 280278052507.

It is not an unprimeable number, because it can be changed into a prime (280278052753) 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, 38934725 + ... + 38941922.

It is an arithmetic number, because the mean of its divisors is an integer number (36212641320).

Almost surely, 2^280278052553 is an apocalyptic number.

It is an amenable number.

280278052553 is a deficient number, since it is larger than the sum of its proper divisors (9423078007).

280278052553 is an equidigital number, since it uses as much as digits as its factorization.

280278052553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77876767.

The product of its (nonzero) digits is 1344000, while the sum is 47.

The spelling of 280278052553 in words is "two hundred eighty billion, two hundred seventy-eight million, fifty-two thousand, five hundred fifty-three".