25213501002420 has 48 divisors (see below), whose sum is σ = 78442003120320. Its totient is φ = 6723600267168.

The previous prime is 25213501002409. The next prime is 25213501002433. The reversal of 25213501002420 is 2420010531252.

25213501002420 is a `hidden beast` number, since 2 + 5 + 2 + 135 + 0 + 100 + 2 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23345833722 + ... + 23345834801.

It is an arithmetic number, because the mean of its divisors is an integer number (1634208398340).

Almost surely, 2^{25213501002420} is an apocalyptic number.

25213501002420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25213501002420 is an abundant number, since it is smaller than the sum of its proper divisors (53228502117900).

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

25213501002420 is a wasteful number, since it uses less digits than its factorization.

25213501002420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46691668541 (or 46691668533 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 25213501002420 its reverse (2420010531252), we get a palindrome (27633511533672).

The spelling of 25213501002420 in words is "twenty-five trillion, two hundred thirteen billion, five hundred one million, two thousand, four hundred twenty".