25570122 has 16 divisors (see below), whose sum is σ = 52330080. Its totient is φ = 8325072.

The previous prime is 25570121. The next prime is 25570169. The reversal of 25570122 is 22107552.

It is a super-2 number, since 2×25570122² = 1307662278189768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25570092 and 25570101.

It is not an unprimeable number, because it can be changed into a prime (25570121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49297 + ... + 49812.

It is an arithmetic number, because the mean of its divisors is an integer number (3270630).

Almost surely, 2^25570122 is an apocalyptic number.

25570122 is an abundant number, since it is smaller than the sum of its proper divisors (26759958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25570122 is a wasteful number, since it uses less digits than its factorization.

25570122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99157.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 25570122 is about 5056.6908151478. The cubic root of 25570122 is about 294.6078174509.

Adding to 25570122 its reverse (22107552), we get a palindrome (47677674).

The spelling of 25570122 in words is "twenty-five million, five hundred seventy thousand, one hundred twenty-two".