157055783 has 4 divisors (see below), whose sum is σ = 157130040. Its totient is φ = 156981528.

The previous prime is 157055771. The next prime is 157055803. The reversal of 157055783 is 387550751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157055783 - 2¹⁰ = 157054759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157055783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157054783) 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, 33860 + ... + 38217.

It is an arithmetic number, because the mean of its divisors is an integer number (39282510).

Almost surely, 2^157055783 is an apocalyptic number.

157055783 is a deficient number, since it is larger than the sum of its proper divisors (74257).

157055783 is an equidigital number, since it uses as much as digits as its factorization.

157055783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74256.

The product of its (nonzero) digits is 147000, while the sum is 41.

The square root of 157055783 is about 12532.1898724844. The cubic root of 157055783 is about 539.5329557965.

The spelling of 157055783 in words is "one hundred fifty-seven million, fifty-five thousand, seven hundred eighty-three".