25550214004 has 24 divisors (see below), whose sum is σ = 51119794880. Its totient is φ = 10945941696.

The previous prime is 25550213939. The next prime is 25550214013. The reversal of 25550214004 is 40041205552.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97137 + ... + 246040.

Almost surely, 2^25550214004 is an apocalyptic number.

It is an amenable number.

25550214004 is an abundant number, since it is smaller than the sum of its proper divisors (25569580876).

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

25550214004 is a wasteful number, since it uses less digits than its factorization.

25550214004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345847 (or 345845 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 25550214004 its reverse (40041205552), we get a palindrome (65591419556).

The spelling of 25550214004 in words is "twenty-five billion, five hundred fifty million, two hundred fourteen thousand, four".