25070222 has 4 divisors (see below), whose sum is σ = 37605336. Its totient is φ = 12535110.

The previous prime is 25070209. The next prime is 25070237. The reversal of 25070222 is 22207052.

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

It is a super-2 number, since 2×25070222² = 1257032062258568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25070194 and 25070203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6267554 + ... + 6267557.

It is an arithmetic number, because the mean of its divisors is an integer number (9401334).

Almost surely, 2^25070222 is an apocalyptic number.

25070222 is a deficient number, since it is larger than the sum of its proper divisors (12535114).

25070222 is a wasteful number, since it uses less digits than its factorization.

25070222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12535113.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 25070222 is about 5007.0172757841. The cubic root of 25070222 is about 292.6752917194.

Adding to 25070222 its reverse (22207052), we get a palindrome (47277274).

The spelling of 25070222 in words is "twenty-five million, seventy thousand, two hundred twenty-two".