53969814 has 24 divisors (see below), whose sum is σ = 121266600. Its totient is φ = 17989776.

The previous prime is 53969807. The next prime is 53969819. The reversal of 53969814 is 41896935.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 53969814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53969819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55039 + ... + 56010.

It is an arithmetic number, because the mean of its divisors is an integer number (5052775).

Almost surely, 2^53969814 is an apocalyptic number.

53969814 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

53969814 is an abundant number, since it is smaller than the sum of its proper divisors (67296786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53969814 is a wasteful number, since it uses less digits than its factorization.

53969814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111066 (or 111054 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 53969814 is about 7346.4150440878. The cubic root of 53969814 is about 377.9058722543.

The spelling of 53969814 in words is "fifty-three million, nine hundred sixty-nine thousand, eight hundred fourteen".