55419925 has 24 divisors (see below), whose sum is σ = 75566592. Its totient is φ = 39984000.

The previous prime is 55419919. The next prime is 55419929. The reversal of 55419925 is 52991455.

It is not a de Polignac number, because 55419925 - 2⁵ = 55419893 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 (55419929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36940 + ... + 38410.

It is an arithmetic number, because the mean of its divisors is an integer number (3148608).

Almost surely, 2^55419925 is an apocalyptic number.

55419925 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55419925 is a deficient number, since it is larger than the sum of its proper divisors (20146667).

55419925 is a wasteful number, since it uses less digits than its factorization.

55419925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629 (or 1624 counting only the distinct ones).

The product of its digits is 81000, while the sum is 40.

The square root of 55419925 is about 7444.4559908700. The cubic root of 55419925 is about 381.2606446907.

The spelling of 55419925 in words is "fifty-five million, four hundred nineteen thousand, nine hundred twenty-five".