145525253530 has 64 divisors (see below), whose sum is σ = 283627008000. Its totient is φ = 53584331328.

The previous prime is 145525253453. The next prime is 145525253537. The reversal of 145525253530 is 35352525541.

It is not an unprimeable number, because it can be changed into a prime (145525253537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1182651 + ... + 1299889.

It is an arithmetic number, because the mean of its divisors is an integer number (4431672000).

Almost surely, 2^145525253530 is an apocalyptic number.

145525253530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145525253530 is a deficient number, since it is larger than the sum of its proper divisors (138101754470).

145525253530 is a wasteful number, since it uses less digits than its factorization.

145525253530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117451.

The product of its (nonzero) digits is 450000, while the sum is 40.

The spelling of 145525253530 in words is "one hundred forty-five billion, five hundred twenty-five million, two hundred fifty-three thousand, five hundred thirty".