55254023421 has 8 divisors (see below), whose sum is σ = 73904436384. Its totient is φ = 36719813040.

The previous prime is 55254023353. The next prime is 55254023431. The reversal of 55254023421 is 12432045255.

It is a happy number.

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

It is not a de Polignac number, because 55254023421 - 2⁹ = 55254022909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55254023431) 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, 29049535 + ... + 29051436.

It is an arithmetic number, because the mean of its divisors is an integer number (9238054548).

Almost surely, 2^55254023421 is an apocalyptic number.

It is an amenable number.

55254023421 is a deficient number, since it is larger than the sum of its proper divisors (18650412963).

55254023421 is a wasteful number, since it uses less digits than its factorization.

55254023421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58101291.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 55254023421 its reverse (12432045255), we get a palindrome (67686068676).

The spelling of 55254023421 in words is "fifty-five billion, two hundred fifty-four million, twenty-three thousand, four hundred twenty-one".