55213834 has 16 divisors (see below), whose sum is σ = 89985672. Its totient is φ = 25256448.

The previous prime is 55213831. The next prime is 55213843. The reversal of 55213834 is 43831255.

It can be written as a sum of positive squares in 4 ways, for example, as 27092025 + 28121809 = 5205^2 + 5303^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55213796 and 55213805.

It is not an unprimeable number, because it can be changed into a prime (55213831) 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, 6459 + ... + 12334.

Almost surely, 2^55213834 is an apocalyptic number.

55213834 is a deficient number, since it is larger than the sum of its proper divisors (34771838).

55213834 is a wasteful number, since it uses less digits than its factorization.

55213834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18921.

The product of its digits is 14400, while the sum is 31.

The square root of 55213834 is about 7430.6011869835. The cubic root of 55213834 is about 380.7874575480.

The spelling of 55213834 in words is "fifty-five million, two hundred thirteen thousand, eight hundred thirty-four".