52151431 has 4 divisors (see below), whose sum is σ = 52272864. Its totient is φ = 52030000.

The previous prime is 52151423. The next prime is 52151441. The reversal of 52151431 is 13415125.

It is a happy number.

52151431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52151431 - 2³ = 52151423 is a prime.

It is a super-2 number, since 2×52151431² = 5439543510695522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52151441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60070 + ... + 60931.

It is an arithmetic number, because the mean of its divisors is an integer number (13068216).

Almost surely, 2^52151431 is an apocalyptic number.

52151431 is a deficient number, since it is larger than the sum of its proper divisors (121433).

52151431 is a wasteful number, since it uses less digits than its factorization.

52151431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121432.

The product of its digits is 600, while the sum is 22.

The square root of 52151431 is about 7221.5947684705. The cubic root of 52151431 is about 373.6130837070.

Adding to 52151431 its reverse (13415125), we get a palindrome (65566556).

It can be divided in two parts, 52151 and 431, that multiplied together give a square (22477081 = 4741²).

The spelling of 52151431 in words is "fifty-two million, one hundred fifty-one thousand, four hundred thirty-one".