2525401654240 has 48 divisors (see below), whose sum is σ = 5966376902640. Its totient is φ = 1010141107200.

The previous prime is 2525401654207. The next prime is 2525401654261. The reversal of 2525401654240 is 424561045252.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 2525401654193 and 2525401654202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10416316 + ... + 10656004.

It is an arithmetic number, because the mean of its divisors is an integer number (124299518805).

Almost surely, 2^{2525401654240} is an apocalyptic number.

2525401654240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2525401654240 is an abundant number, since it is smaller than the sum of its proper divisors (3440975248400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2525401654240 is a wasteful number, since it uses less digits than its factorization.

2525401654240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305555 (or 305547 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 2525401654240 its reverse (424561045252), we get a palindrome (2949962699492).

The spelling of 2525401654240 in words is "two trillion, five hundred twenty-five billion, four hundred one million, six hundred fifty-four thousand, two hundred forty".