55051245 has 20 divisors (see below), whose sum is σ = 98685180. Its totient is φ = 29360448.

The previous prime is 55051231. The next prime is 55051261. The reversal of 55051245 is 54215055.

It can be written as a sum of positive squares in 2 ways, for example, as 37234404 + 17816841 = 6102^2 + 4221^2 .

It is not a de Polignac number, because 55051245 - 2¹² = 55047149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 67560 + ... + 68369.

It is an arithmetic number, because the mean of its divisors is an integer number (4934259).

Almost surely, 2^55051245 is an apocalyptic number.

It is an amenable number.

55051245 is a deficient number, since it is larger than the sum of its proper divisors (43633935).

55051245 is a wasteful number, since it uses less digits than its factorization.

55051245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135946 (or 135937 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 55051245 is about 7419.6526199007. The cubic root of 55051245 is about 380.4133198970.

The spelling of 55051245 in words is "fifty-five million, fifty-one thousand, two hundred forty-five".