55425423 has 16 divisors (see below), whose sum is σ = 81651456. Its totient is φ = 33264000.

The previous prime is 55425407. The next prime is 55425431. The reversal of 55425423 is 32452455.

It is not a de Polignac number, because 55425423 - 2⁴ = 55425407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55475423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22453 + ... + 24798.

It is an arithmetic number, because the mean of its divisors is an integer number (5103216).

Almost surely, 2^55425423 is an apocalyptic number.

55425423 is a deficient number, since it is larger than the sum of its proper divisors (26226033).

55425423 is a wasteful number, since it uses less digits than its factorization.

55425423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47294.

The product of its digits is 24000, while the sum is 30.

The square root of 55425423 is about 7444.8252497960. The cubic root of 55425423 is about 381.2732520800.

Adding to 55425423 its reverse (32452455), we get a palindrome (87877878).

The spelling of 55425423 in words is "fifty-five million, four hundred twenty-five thousand, four hundred twenty-three".