254525421 has 4 divisors (see below), whose sum is σ = 339367232. Its totient is φ = 169683612.

The previous prime is 254525413. The next prime is 254525441. The reversal of 254525421 is 124525452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 254525421 - 2³ = 254525413 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 (254525441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42420901 + ... + 42420906.

It is an arithmetic number, because the mean of its divisors is an integer number (84841808).

Almost surely, 2^254525421 is an apocalyptic number.

It is an amenable number.

254525421 is a deficient number, since it is larger than the sum of its proper divisors (84841811).

254525421 is an equidigital number, since it uses as much as digits as its factorization.

254525421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84841810.

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

The square root of 254525421 is about 15953.8528575388. The cubic root of 254525421 is about 633.7389327728.

It can be divided in two parts, 2545 and 25421, that added together give a triangular number (27966 = T₂₃₆).

The spelling of 254525421 in words is "two hundred fifty-four million, five hundred twenty-five thousand, four hundred twenty-one".