25402455122 has 16 divisors (see below), whose sum is σ = 44012810592. Its totient is φ = 10867360320.

The previous prime is 25402455109. The next prime is 25402455131. The reversal of 25402455122 is 22155420452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33960128 + ... + 33960875.

It is an arithmetic number, because the mean of its divisors is an integer number (2750800662).

Almost surely, 2^25402455122 is an apocalyptic number.

25402455122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25402455122 is a deficient number, since it is larger than the sum of its proper divisors (18610355470).

25402455122 is a wasteful number, since it uses less digits than its factorization.

25402455122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67921033.

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 25402455122 its reverse (22155420452), we get a palindrome (47557875574).

The spelling of 25402455122 in words is "twenty-five billion, four hundred two million, four hundred fifty-five thousand, one hundred twenty-two".