25158450043 has 4 divisors (see below), whose sum is σ = 25159633168. Its totient is φ = 25157266920.

The previous prime is 25158450029. The next prime is 25158450049. The reversal of 25158450043 is 34005485152.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25158450043 is a prime.

It is a super-2 number, since 2×25158450043² (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 = 25158449984 and 25158450011.

It is not an unprimeable number, because it can be changed into a prime (25158450049) 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, 559071 + ... + 602392.

It is an arithmetic number, because the mean of its divisors is an integer number (6289908292).

Almost surely, 2^25158450043 is an apocalyptic number.

25158450043 is a deficient number, since it is larger than the sum of its proper divisors (1183125).

25158450043 is a wasteful number, since it uses less digits than its factorization.

25158450043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183124.

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 25158450043 in words is "twenty-five billion, one hundred fifty-eight million, four hundred fifty thousand, forty-three".