145555251250 has 40 divisors (see below), whose sum is σ = 273020193072. Its totient is φ = 58181250000.

The previous prime is 145555251241. The next prime is 145555251253. The reversal of 145555251250 is 52152555541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (145555251253) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1773625 + ... + 1853875.

Almost surely, 2^145555251250 is an apocalyptic number.

145555251250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145555251250 is a deficient number, since it is larger than the sum of its proper divisors (127464941822).

145555251250 is an equidigital number, since it uses as much as digits as its factorization.

145555251250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81724 (or 81709 counting only the distinct ones).

The product of its (nonzero) digits is 250000, while the sum is 40.

The spelling of 145555251250 in words is "one hundred forty-five billion, five hundred fifty-five million, two hundred fifty-one thousand, two hundred fifty".