250011125540 has 48 divisors (see below), whose sum is σ = 572964779520. Its totient is φ = 90879482880.

The previous prime is 250011125531. The next prime is 250011125591. The reversal of 250011125540 is 45521110052.

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, 389204 + ... + 807156.

It is an arithmetic number, because the mean of its divisors is an integer number (11936766240).

Almost surely, 2^250011125540 is an apocalyptic number.

250011125540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250011125540 is an abundant number, since it is smaller than the sum of its proper divisors (322953653980).

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

250011125540 is a wasteful number, since it uses less digits than its factorization.

250011125540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420692 (or 420690 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 250011125540 its reverse (45521110052), we get a palindrome (295532235592).

The spelling of 250011125540 in words is "two hundred fifty billion, eleven million, one hundred twenty-five thousand, five hundred forty".