53420031 has 12 divisors (see below), whose sum is σ = 88185552. Its totient is φ = 30525696.

The previous prime is 53420009. The next prime is 53420033. The reversal of 53420031 is 13002435.

It is not a de Polignac number, because 53420031 - 2⁹ = 53419519 is a prime.

It is a super-2 number, since 2×53420031² = 5707399424081922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53419986 and 53420013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53420033) 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, 423906 + ... + 424031.

It is an arithmetic number, because the mean of its divisors is an integer number (7348796).

Almost surely, 2^53420031 is an apocalyptic number.

53420031 is a deficient number, since it is larger than the sum of its proper divisors (34765521).

53420031 is a wasteful number, since it uses less digits than its factorization.

53420031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847950 (or 847947 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 53420031 is about 7308.9008065509. The cubic root of 53420031 is about 376.6182652019.

Adding to 53420031 its reverse (13002435), we get a palindrome (66422466).

The spelling of 53420031 in words is "fifty-three million, four hundred twenty thousand, thirty-one".