53031444 has 24 divisors (see below), whose sum is σ = 124188288. Its totient is φ = 17613120.

The previous prime is 53031431. The next prime is 53031457. The reversal of 53031444 is 44413035.

It is an interprime number because it is at equal distance from previous prime (53031431) and next prime (53031457).

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, 4492 + ... + 11235.

It is an arithmetic number, because the mean of its divisors is an integer number (5174512).

Almost surely, 2^53031444 is an apocalyptic number.

It is an amenable number.

53031444 is an abundant number, since it is smaller than the sum of its proper divisors (71156844).

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

53031444 is a wasteful number, since it uses less digits than its factorization.

53031444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16015 (or 16013 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 53031444 is about 7282.2691518510. The cubic root of 53031444 is about 375.7028454214.

Adding to 53031444 its reverse (44413035), we get a palindrome (97444479).

The spelling of 53031444 in words is "fifty-three million, thirty-one thousand, four hundred forty-four".