55051895 has 8 divisors (see below), whose sum is σ = 67309056. Its totient is φ = 43210336.

The previous prime is 55051891. The next prime is 55051907. The reversal of 55051895 is 59815055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55051895 - 2² = 55051891 is a prime.

It is a super-2 number, since 2×55051895² = 6061422286182050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55051891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103607 + ... + 104136.

It is an arithmetic number, because the mean of its divisors is an integer number (8413632).

Almost surely, 2^55051895 is an apocalyptic number.

55051895 is a deficient number, since it is larger than the sum of its proper divisors (12257161).

55051895 is a wasteful number, since it uses less digits than its factorization.

55051895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207801.

The product of its (nonzero) digits is 45000, while the sum is 38.

The square root of 55051895 is about 7419.6964223612. The cubic root of 55051895 is about 380.4148170941.

The spelling of 55051895 in words is "fifty-five million, fifty-one thousand, eight hundred ninety-five".