150642553 has 4 divisors (see below), whose sum is σ = 150741108. Its totient is φ = 150544000.

The previous prime is 150642539. The next prime is 150642601. The reversal of 150642553 is 355246051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 355246051 = 127 ⋅2797213.

It can be written as a sum of positive squares in 2 ways, for example, as 60715264 + 89927289 = 7792^2 + 9483^2 .

It is a cyclic number.

It is not a de Polignac number, because 150642553 - 2²⁵ = 117088121 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150642523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46948 + ... + 50053.

It is an arithmetic number, because the mean of its divisors is an integer number (37685277).

Almost surely, 2^150642553 is an apocalyptic number.

It is an amenable number.

150642553 is a deficient number, since it is larger than the sum of its proper divisors (98555).

150642553 is an equidigital number, since it uses as much as digits as its factorization.

150642553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98554.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 150642553 is about 12273.6527977616. The cubic root of 150642553 is about 532.0868865664.

The spelling of 150642553 in words is "one hundred fifty million, six hundred forty-two thousand, five hundred fifty-three".