53091854 has 4 divisors (see below), whose sum is σ = 79637784. Its totient is φ = 26545926.

The previous prime is 53091853. The next prime is 53091869. The reversal of 53091854 is 45819035.

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

It is a super-2 number, since 2×53091854² = 5637489922314632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53091851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13272962 + ... + 13272965.

It is an arithmetic number, because the mean of its divisors is an integer number (19909446).

Almost surely, 2^53091854 is an apocalyptic number.

53091854 is a deficient number, since it is larger than the sum of its proper divisors (26545930).

53091854 is a wasteful number, since it uses less digits than its factorization.

53091854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26545929.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 53091854 is about 7286.4157169352. The cubic root of 53091854 is about 375.8454501015.

The spelling of 53091854 in words is "fifty-three million, ninety-one thousand, eight hundred fifty-four".