55236545 has 32 divisors (see below), whose sum is σ = 82747392. Its totient is φ = 34463232.

The previous prime is 55236541. The next prime is 55236569. The reversal of 55236545 is 54563255.

It is a cyclic number.

It is not a de Polignac number, because 55236545 - 2² = 55236541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55236541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32384 + ... + 34046.

It is an arithmetic number, because the mean of its divisors is an integer number (2585856).

Almost surely, 2^55236545 is an apocalyptic number.

It is an amenable number.

55236545 is a deficient number, since it is larger than the sum of its proper divisors (27510847).

55236545 is a wasteful number, since it uses less digits than its factorization.

55236545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761.

The product of its digits is 90000, while the sum is 35.

The square root of 55236545 is about 7432.1292373047. The cubic root of 55236545 is about 380.8396599151.

The spelling of 55236545 in words is "fifty-five million, two hundred thirty-six thousand, five hundred forty-five".