11257801050 has 24 divisors (see below), whose sum is σ = 27919346976. Its totient is φ = 3002080240.

The previous prime is 11257801039. The next prime is 11257801067. The reversal of 11257801050 is 5010875211.

It is a super-2 number, since 2×11257801050² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11257800999 and 11257801017.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37525854 + ... + 37526153.

It is an arithmetic number, because the mean of its divisors is an integer number (1163306124).

Almost surely, 2^11257801050 is an apocalyptic number.

11257801050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11257801050 is an abundant number, since it is smaller than the sum of its proper divisors (16661545926).

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

11257801050 is a wasteful number, since it uses less digits than its factorization.

11257801050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75052022 (or 75052017 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 30.

The spelling of 11257801050 in words is "eleven billion, two hundred fifty-seven million, eight hundred one thousand, fifty".