53172342 has 32 divisors (see below), whose sum is σ = 118661760. Its totient is φ = 17649000.

The previous prime is 53172331. The next prime is 53172349. The reversal of 53172342 is 24327135.

53172342 is a `hidden beast` number, since 5 + 317 + 2 + 342 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53172349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11593 + ... + 15515.

It is an arithmetic number, because the mean of its divisors is an integer number (3708180).

Almost surely, 2^53172342 is an apocalyptic number.

53172342 is an abundant number, since it is smaller than the sum of its proper divisors (65489418).

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

53172342 is a wasteful number, since it uses less digits than its factorization.

53172342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4185 (or 4179 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 53172342 is about 7291.9367797589. The cubic root of 53172342 is about 376.0352832063.

Adding to 53172342 its reverse (24327135), we get a palindrome (77499477).

The spelling of 53172342 in words is "fifty-three million, one hundred seventy-two thousand, three hundred forty-two".