145525650 has 48 divisors (see below), whose sum is σ = 361637568. Its totient is φ = 38728000.

The previous prime is 145525609. The next prime is 145525657. The reversal of 145525650 is 56525541.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145525657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140635 + ... + 141665.

It is an arithmetic number, because the mean of its divisors is an integer number (7534116).

Almost surely, 2^145525650 is an apocalyptic number.

145525650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145525650 is an abundant number, since it is smaller than the sum of its proper divisors (216111918).

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

145525650 is a wasteful number, since it uses less digits than its factorization.

145525650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 145525650 is about 12063.4012616675. The cubic root of 145525650 is about 525.9928603849.

It can be divided in two parts, 14552 and 5650, that added together give a palindrome (20202).

The spelling of 145525650 in words is "one hundred forty-five million, five hundred twenty-five thousand, six hundred fifty".