53813403 has 40 divisors (see below), whose sum is σ = 92835072. Its totient is φ = 30428784.

The previous prime is 53813401. The next prime is 53813411. The reversal of 53813403 is 30431835.

It is a happy number.

It is not a de Polignac number, because 53813403 - 2¹ = 53813401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (53813401) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 60226 + ... + 61112.

Almost surely, 2^53813403 is an apocalyptic number.

53813403 is a deficient number, since it is larger than the sum of its proper divisors (39021669).

53813403 is a wasteful number, since it uses less digits than its factorization.

53813403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 53813403 is about 7335.7619236178. The cubic root of 53813403 is about 377.5404468160.

The spelling of 53813403 in words is "fifty-three million, eight hundred thirteen thousand, four hundred three".