25401010 has 16 divisors (see below), whose sum is σ = 46472472. Its totient is φ = 9993600.

The previous prime is 25401001. The next prime is 25401011. The reversal of 25401010 is 1010452.

It can be written as a sum of positive squares in 4 ways, for example, as 21594609 + 3806401 = 4647^2 + 1951^2 .

It is a super-2 number, since 2×25401010² = 1290422618040200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25401011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20211 + ... + 21430.

Almost surely, 2^25401010 is an apocalyptic number.

25401010 is a deficient number, since it is larger than the sum of its proper divisors (21071462).

25401010 is a wasteful number, since it uses less digits than its factorization.

25401010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41709.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 25401010 is about 5039.9414679141. The cubic root of 25401010 is about 293.9569020695.

Adding to 25401010 its reverse (1010452), we get a palindrome (26411462).

The spelling of 25401010 in words is "twenty-five million, four hundred one thousand, ten".