42252512431 has 4 divisors (see below), whose sum is σ = 42521636872. Its totient is φ = 41983387992.

The previous prime is 42252512429. The next prime is 42252512437. The reversal of 42252512431 is 13421525224.

It is a happy number.

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 42252512431 - 2¹ = 42252512429 is a prime.

It is a super-2 number, since 2×42252512431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42252512393 and 42252512402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42252512437) 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, 134561985 + ... + 134562298.

It is an arithmetic number, because the mean of its divisors is an integer number (10630409218).

Almost surely, 2^42252512431 is an apocalyptic number.

42252512431 is a deficient number, since it is larger than the sum of its proper divisors (269124441).

42252512431 is a wasteful number, since it uses less digits than its factorization.

42252512431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269124440.

The product of its digits is 19200, while the sum is 31.

The spelling of 42252512431 in words is "forty-two billion, two hundred fifty-two million, five hundred twelve thousand, four hundred thirty-one".