53215044 has 24 divisors (see below), whose sum is σ = 124762848. Its totient is φ = 17653440.

The previous prime is 53215039. The next prime is 53215061. The reversal of 53215044 is 44051235.

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, 7977 + ... + 13040.

It is an arithmetic number, because the mean of its divisors is an integer number (5198452).

Almost surely, 2^53215044 is an apocalyptic number.

It is an amenable number.

53215044 is an abundant number, since it is smaller than the sum of its proper divisors (71547804).

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

53215044 is a wasteful number, since it uses less digits than its factorization.

53215044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21235 (or 21233 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 53215044 is about 7294.8642208063. The cubic root of 53215044 is about 376.1359192479.

Adding to 53215044 its reverse (44051235), we get a palindrome (97266279).

It can be divided in two parts, 532 and 15044, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 53215044 in words is "fifty-three million, two hundred fifteen thousand, forty-four".