55425811 has 6 divisors (see below), whose sum is σ = 64474980. Its totient is φ = 47507796.

The previous prime is 55425803. The next prime is 55425827. The reversal of 55425811 is 11852455.

It is not a de Polignac number, because 55425811 - 2³ = 55425803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55425011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 565521 + ... + 565618.

It is an arithmetic number, because the mean of its divisors is an integer number (10745830).

Almost surely, 2^55425811 is an apocalyptic number.

55425811 is a deficient number, since it is larger than the sum of its proper divisors (9049169).

55425811 is a wasteful number, since it uses less digits than its factorization.

55425811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131153 (or 1131146 counting only the distinct ones).

The product of its digits is 8000, while the sum is 31.

The square root of 55425811 is about 7444.8513081189. The cubic root of 55425811 is about 381.2741417661.

The spelling of 55425811 in words is "fifty-five million, four hundred twenty-five thousand, eight hundred eleven".