25378490001 has 32 divisors (see below), whose sum is σ = 36839577600. Its totient is φ = 15477278720.

The previous prime is 25378489999. The next prime is 25378490009. The reversal of 25378490001 is 10009487352.

It is not a de Polignac number, because 25378490001 - 2¹ = 25378489999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25378490009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 539920 + ... + 585038.

It is an arithmetic number, because the mean of its divisors is an integer number (1151236800).

Almost surely, 2^25378490001 is an apocalyptic number.

It is an amenable number.

25378490001 is a deficient number, since it is larger than the sum of its proper divisors (11461087599).

25378490001 is a wasteful number, since it uses less digits than its factorization.

25378490001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45449.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 25378490001 in words is "twenty-five billion, three hundred seventy-eight million, four hundred ninety thousand, one".