55153851 has 4 divisors (see below), whose sum is σ = 73538472. Its totient is φ = 36769232.

The previous prime is 55153829. The next prime is 55153859. The reversal of 55153851 is 15835155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55153851 - 2¹³ = 55145659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55153859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9192306 + ... + 9192311.

It is an arithmetic number, because the mean of its divisors is an integer number (18384618).

Almost surely, 2^55153851 is an apocalyptic number.

55153851 is a deficient number, since it is larger than the sum of its proper divisors (18384621).

55153851 is a wasteful number, since it uses less digits than its factorization.

55153851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18384620.

The product of its digits is 15000, while the sum is 33.

The square root of 55153851 is about 7426.5638757100. The cubic root of 55153851 is about 380.6495147619.

The spelling of 55153851 in words is "fifty-five million, one hundred fifty-three thousand, eight hundred fifty-one".