53945916 has 24 divisors (see below), whose sum is σ = 130215120. Its totient is φ = 17361792.

The previous prime is 53945893. The next prime is 53945923. The reversal of 53945916 is 61954935.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77161 + ... + 77856.

It is an arithmetic number, because the mean of its divisors is an integer number (5425630).

Almost surely, 2^53945916 is an apocalyptic number.

It is an amenable number.

53945916 is an abundant number, since it is smaller than the sum of its proper divisors (76269204).

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

53945916 is a wasteful number, since it uses less digits than its factorization.

53945916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155053 (or 155051 counting only the distinct ones).

The product of its digits is 145800, while the sum is 42.

The square root of 53945916 is about 7344.7883563790. The cubic root of 53945916 is about 377.8500847242.

The spelling of 53945916 in words is "fifty-three million, nine hundred forty-five thousand, nine hundred sixteen".