55386425 has 30 divisors (see below), whose sum is σ = 76759038. Its totient is φ = 39507840.

The previous prime is 55386403. The next prime is 55386437. The reversal of 55386425 is 52468355.

It can be written as a sum of positive squares in 3 ways, for example, as 8340544 + 47045881 = 2888^2 + 6859^2 .

It is not a de Polignac number, because 55386425 - 2²⁰ = 54337849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2915066 + ... + 2915084.

Almost surely, 2^55386425 is an apocalyptic number.

It is an amenable number.

55386425 is a deficient number, since it is larger than the sum of its proper divisors (21372613).

55386425 is an frugal number, since it uses more digits than its factorization.

55386425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 41 counting only the distinct ones).

The product of its digits is 144000, while the sum is 38.

The square root of 55386425 is about 7442.2056542399. The cubic root of 55386425 is about 381.1838082703.

The spelling of 55386425 in words is "fifty-five million, three hundred eighty-six thousand, four hundred twenty-five".