25422515043 has 32 divisors (see below), whose sum is σ = 35771645952. Its totient is φ = 16028628000.

The previous prime is 25422515039. The next prime is 25422515057. The reversal of 25422515043 is 34051522452.

It is a happy number.

It is not a de Polignac number, because 25422515043 - 2² = 25422515039 is a prime.

It is a super-2 number, since 2×25422515043² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25422514995 and 25422515013.

It is not an unprimeable number, because it can be changed into a prime (25422514043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2195118 + ... + 2206668.

It is an arithmetic number, because the mean of its divisors is an integer number (1117863936).

Almost surely, 2^25422515043 is an apocalyptic number.

25422515043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25422515043 is a deficient number, since it is larger than the sum of its proper divisors (10349130909).

25422515043 is a wasteful number, since it uses less digits than its factorization.

25422515043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11935.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 25422515043 in words is "twenty-five billion, four hundred twenty-two million, five hundred fifteen thousand, forty-three".