25350423450 has 48 divisors (see below), whose sum is σ = 68584422816. Its totient is φ = 6145556800.

The previous prime is 25350423421. The next prime is 25350423557. The reversal of 25350423450 is 5432405352.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

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, 7680297 + ... + 7683596.

It is an arithmetic number, because the mean of its divisors is an integer number (1428842142).

Almost surely, 2^25350423450 is an apocalyptic number.

25350423450 is an abundant number, since it is smaller than the sum of its proper divisors (43233999366).

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

25350423450 is a wasteful number, since it uses less digits than its factorization.

25350423450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15363919 (or 15363914 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 33.

The spelling of 25350423450 in words is "twenty-five billion, three hundred fifty million, four hundred twenty-three thousand, four hundred fifty".