52542152 has 16 divisors (see below), whose sum is σ = 106094940. Its totient is φ = 24250176.

The previous prime is 52542131. The next prime is 52542157. The reversal of 52542152 is 25124525.

It can be written as a sum of positive squares in 2 ways, for example, as 52504516 + 37636 = 7246^2 + 194^2 .

It is a super-2 number, since 2×52542152² = 5521355473582208, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (52542157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252503 + ... + 252710.

Almost surely, 2^52542152 is an apocalyptic number.

52542152 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

52542152 is an abundant number, since it is smaller than the sum of its proper divisors (53552788).

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

52542152 is a wasteful number, since it uses less digits than its factorization.

52542152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505232 (or 505228 counting only the distinct ones).

The product of its digits is 4000, while the sum is 26.

The square root of 52542152 is about 7248.5965538165. The cubic root of 52542152 is about 374.5438055523.

Adding to 52542152 its reverse (25124525), we get a palindrome (77666677).

The spelling of 52542152 in words is "fifty-two million, five hundred forty-two thousand, one hundred fifty-two".