157448553 has 4 divisors (see below), whose sum is σ = 209931408. Its totient is φ = 104965700.

The previous prime is 157448537. The next prime is 157448563. The reversal of 157448553 is 355844751.

It is a happy number.

157448553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 355844751 = 3 ⋅118614917.

It is a cyclic number.

It is not a de Polignac number, because 157448553 - 2⁴ = 157448537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157448563) 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, 26241423 + ... + 26241428.

It is an arithmetic number, because the mean of its divisors is an integer number (52482852).

Almost surely, 2^157448553 is an apocalyptic number.

It is an amenable number.

157448553 is a deficient number, since it is larger than the sum of its proper divisors (52482855).

157448553 is an equidigital number, since it uses as much as digits as its factorization.

157448553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52482854.

The product of its digits is 336000, while the sum is 42.

The square root of 157448553 is about 12547.8505330594. The cubic root of 157448553 is about 539.9823416722.

The spelling of 157448553 in words is "one hundred fifty-seven million, four hundred forty-eight thousand, five hundred fifty-three".