25145211 has 16 divisors (see below), whose sum is σ = 41264384. Its totient is φ = 13263264.

The previous prime is 25145209. The next prime is 25145221. The reversal of 25145211 is 11254152.

It is not a de Polignac number, because 25145211 - 2¹ = 25145209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is the 5015-th Hogben number.

It is not an unprimeable number, because it can be changed into a prime (25145201) by changing a digit.

It is a nontrivial repunit in base 5014.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45781 + ... + 46326.

It is an arithmetic number, because the mean of its divisors is an integer number (2579024).

Almost surely, 2^25145211 is an apocalyptic number.

25145211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25145211 is a deficient number, since it is larger than the sum of its proper divisors (16119173).

25145211 is a wasteful number, since it uses less digits than its factorization.

25145211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92130.

The product of its digits is 400, while the sum is 21.

The square root of 25145211 is about 5014.5000747831. The cubic root of 25145211 is about 292.9668139485.

Adding to 25145211 its reverse (11254152), we get a palindrome (36399363).

The spelling of 25145211 in words is "twenty-five million, one hundred forty-five thousand, two hundred eleven".