40254661020025 has 24 divisors (see below), whose sum is σ = 52548150492800. Its totient is φ = 30505762123200.

The previous prime is 40254661020001. The next prime is 40254661020071. The reversal of 40254661020025 is 52002016645204.

It is a happy number.

It is not a de Polignac number, because 40254661020025 - 2¹³ = 40254661011833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 574480 + ... + 8991070.

Almost surely, 2^{40254661020025} is an apocalyptic number.

It is an amenable number.

40254661020025 is a deficient number, since it is larger than the sum of its proper divisors (12293489472775).

40254661020025 is a wasteful number, since it uses less digits than its factorization.

40254661020025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8426689 (or 8426684 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 40254661020025 its reverse (52002016645204), we get a palindrome (92256677665229).

The spelling of 40254661020025 in words is "forty trillion, two hundred fifty-four billion, six hundred sixty-one million, twenty thousand, twenty-five".