53809245 has 32 divisors (see below), whose sum is σ = 109328640. Its totient is φ = 24598080.

The previous prime is 53809207. The next prime is 53809247. The reversal of 53809245 is 54290835.

It is not a de Polignac number, because 53809245 - 2¹⁵ = 53776477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53809247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27526 + ... + 29415.

It is an arithmetic number, because the mean of its divisors is an integer number (3416520).

Almost surely, 2^53809245 is an apocalyptic number.

It is an amenable number.

53809245 is an abundant number, since it is smaller than the sum of its proper divisors (55519395).

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

53809245 is a wasteful number, since it uses less digits than its factorization.

53809245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56962 (or 56956 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 53809245 is about 7335.4785119991. The cubic root of 53809245 is about 377.5307227602.

The spelling of 53809245 in words is "fifty-three million, eight hundred nine thousand, two hundred forty-five".