5421555 has 48 divisors (see below), whose sum is σ = 10501920. Its totient is φ = 2571264.

The previous prime is 5421547. The next prime is 5421557. The reversal of 5421555 is 5551245.

5421555 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5421555 - 2³ = 5421547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5421557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14349 + ... + 14721.

It is an arithmetic number, because the mean of its divisors is an integer number (218790).

Almost surely, 2^5421555 is an apocalyptic number.

5421555 is a deficient number, since it is larger than the sum of its proper divisors (5080365).

5421555 is a wasteful number, since it uses less digits than its factorization.

5421555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 417 counting only the distinct ones).

The product of its digits is 5000, while the sum is 27.

The square root of 5421555 is about 2328.4232862605. The cubic root of 5421555 is about 175.6741884655.

It can be divided in two parts, 54 and 21555, that added together give a square (21609 = 147²).

The spelling of 5421555 in words is "five million, four hundred twenty-one thousand, five hundred fifty-five".