542255421 has 8 divisors (see below), whose sum is σ = 761060320. Its totient is φ = 342477072.

The previous prime is 542255419. The next prime is 542255423. The reversal of 542255421 is 124552245.

It is an interprime number because it is at equal distance from previous prime (542255419) and next prime (542255423).

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

It is not a de Polignac number, because 542255421 - 2¹ = 542255419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542255423) 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, 4756570 + ... + 4756683.

It is an arithmetic number, because the mean of its divisors is an integer number (95132540).

Almost surely, 2^542255421 is an apocalyptic number.

It is an amenable number.

542255421 is a deficient number, since it is larger than the sum of its proper divisors (218804899).

542255421 is a wasteful number, since it uses less digits than its factorization.

542255421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9513275.

The product of its digits is 16000, while the sum is 30.

The square root of 542255421 is about 23286.3784432015. The cubic root of 542255421 is about 815.4574425228.

The spelling of 542255421 in words is "five hundred forty-two million, two hundred fifty-five thousand, four hundred twenty-one".