135550401123250 has 32 divisors (see below), whose sum is σ = 268676842140720. Its totient is φ = 51030739244800.

The previous prime is 135550401123223. The next prime is 135550401123281. The reversal of 135550401123250 is 52321104055531.

It can be written as a sum of positive squares in 8 ways, for example, as 3239881201089 + 132310519922161 = 1799967^2 + 11502631^2 .

It is a super-2 number, since 2×135550401123250² (a number of 29 digits) contains 22 as substring.

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, 15947101765 + ... + 15947110264.

Almost surely, 2^{135550401123250} is an apocalyptic number.

135550401123250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135550401123250 is a deficient number, since it is larger than the sum of its proper divisors (133126441017470).

135550401123250 is a wasteful number, since it uses less digits than its factorization.

135550401123250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31894212063 (or 31894212053 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

Adding to 135550401123250 its reverse (52321104055531), we get a palindrome (187871505178781).

The spelling of 135550401123250 in words is "one hundred thirty-five trillion, five hundred fifty billion, four hundred one million, one hundred twenty-three thousand, two hundred fifty".