25070523 has 16 divisors (see below), whose sum is σ = 34146336. Its totient is φ = 16358400.

The previous prime is 25070503. The next prime is 25070527. The reversal of 25070523 is 32507052.

It is not a de Polignac number, because 25070523 - 2¹⁷ = 24939451 is a prime.

It is a super-2 number, since 2×25070523² = 1257062246987058, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 25070493 and 25070502.

It is not an unprimeable number, because it can be changed into a prime (25070527) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 28965 + ... + 29817.

It is an arithmetic number, because the mean of its divisors is an integer number (2134146).

Almost surely, 2^25070523 is an apocalyptic number.

25070523 is a deficient number, since it is larger than the sum of its proper divisors (9075813).

25070523 is a wasteful number, since it uses less digits than its factorization.

25070523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 25070523 is about 5007.0473335090. The cubic root of 25070523 is about 292.6764630282.

Adding to 25070523 its reverse (32507052), we get a palindrome (57577575).

Subtracting 25070523 from its reverse (32507052), we obtain a square (7436529 = 2727²).

The spelling of 25070523 in words is "twenty-five million, seventy thousand, five hundred twenty-three".