53231340 has 48 divisors (see below), whose sum is σ = 153861120. Its totient is φ = 13736640.

The previous prime is 53231329. The next prime is 53231351. The reversal of 53231340 is 4313235.

It is an interprime number because it is at equal distance from previous prime (53231329) and next prime (53231351).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12450 + ... + 16169.

It is an arithmetic number, because the mean of its divisors is an integer number (3205440).

Almost surely, 2^53231340 is an apocalyptic number.

It is an amenable number.

53231340 is an abundant number, since it is smaller than the sum of its proper divisors (100629780).

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

53231340 is a wasteful number, since it uses less digits than its factorization.

53231340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28662 (or 28660 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 53231340 is about 7295.9810855018. The cubic root of 53231340 is about 376.1743099291.

Adding to 53231340 its reverse (4313235), we get a palindrome (57544575).

The spelling of 53231340 in words is "fifty-three million, two hundred thirty-one thousand, three hundred forty".