36400025 has 6 divisors (see below), whose sum is σ = 45136062. Its totient is φ = 29120000.

The previous prime is 36400003. The next prime is 36400031. The reversal of 36400025 is 52000463.

It can be written as a sum of positive squares in 3 ways, for example, as 2446096 + 33953929 = 1564^2 + 5827^2 .

It is a de Polignac number, because none of the positive numbers 2^k-36400025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 727976 + ... + 728025.

It is an arithmetic number, because the mean of its divisors is an integer number (7522677).

Almost surely, 2^36400025 is an apocalyptic number.

It is an amenable number.

36400025 is a deficient number, since it is larger than the sum of its proper divisors (8736037).

36400025 is a wasteful number, since it uses less digits than its factorization.

36400025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456011 (or 1456006 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 36400025 is about 6033.2433234538. The cubic root of 36400025 is about 331.4112351412.

Adding to 36400025 its reverse (52000463), we get a palindrome (88400488).

The spelling of 36400025 in words is "thirty-six million, four hundred thousand, twenty-five".