157055785 has 16 divisors (see below), whose sum is σ = 192143952. Its totient is φ = 123206400.

The previous prime is 157055771. The next prime is 157055803. The reversal of 157055785 is 587550751.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 73205136 + 83850649 = 8556^2 + 9157^2 .

It is not a de Polignac number, because 157055785 - 2²⁵ = 123501353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140047 + ... + 141163.

It is an arithmetic number, because the mean of its divisors is an integer number (12008997).

Almost surely, 2^157055785 is an apocalyptic number.

It is an amenable number.

157055785 is a deficient number, since it is larger than the sum of its proper divisors (35088167).

157055785 is a wasteful number, since it uses less digits than its factorization.

157055785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644.

The product of its (nonzero) digits is 245000, while the sum is 43.

The square root of 157055785 is about 12532.1899522789. The cubic root of 157055785 is about 539.5329580867.

The spelling of 157055785 in words is "one hundred fifty-seven million, fifty-five thousand, seven hundred eighty-five".