140255550 has 60 divisors (see below), whose sum is σ = 389713896. Its totient is φ = 37400400.

The previous prime is 140255539. The next prime is 140255561. The reversal of 140255550 is 55552041.

It is an interprime number because it is at equal distance from previous prime (140255539) and next prime (140255561).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 13266 + ... + 21365.

Almost surely, 2^140255550 is an apocalyptic number.

140255550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140255550 is an abundant number, since it is smaller than the sum of its proper divisors (249458346).

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

140255550 is a wasteful number, since it uses less digits than its factorization.

140255550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34655 (or 34641 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 140255550 is about 11842.9536011926. The cubic root of 140255550 is about 519.5651566862.

The spelling of 140255550 in words is "one hundred forty million, two hundred fifty-five thousand, five hundred fifty".