55245045 has 16 divisors (see below), whose sum is σ = 88506432. Its totient is φ = 29425920.

The previous prime is 55245041. The next prime is 55245061. The reversal of 55245045 is 54054255.

It is not a de Polignac number, because 55245045 - 2² = 55245041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55245041) 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, 12669 + ... + 16461.

It is an arithmetic number, because the mean of its divisors is an integer number (5531652).

Almost surely, 2^55245045 is an apocalyptic number.

It is an amenable number.

55245045 is a deficient number, since it is larger than the sum of its proper divisors (33261387).

55245045 is a wasteful number, since it uses less digits than its factorization.

55245045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4772.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 55245045 is about 7432.7010568164. The cubic root of 55245045 is about 380.8591939094.

The spelling of 55245045 in words is "fifty-five million, two hundred forty-five thousand, forty-five".