157655533 has 4 divisors (see below), whose sum is σ = 180177760. Its totient is φ = 135133308.

The previous prime is 157655507. The next prime is 157655543. The reversal of 157655533 is 335556751.

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: 335556751 = 41 ⋅8184311.

It is a cyclic number.

It is not a de Polignac number, because 157655533 - 2¹⁷ = 157524461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157655543) 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, 11261103 + ... + 11261116.

It is an arithmetic number, because the mean of its divisors is an integer number (45044440).

Almost surely, 2^157655533 is an apocalyptic number.

It is an amenable number.

157655533 is a deficient number, since it is larger than the sum of its proper divisors (22522227).

157655533 is an equidigital number, since it uses as much as digits as its factorization.

157655533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22522226.

The product of its digits is 236250, while the sum is 40.

The square root of 157655533 is about 12556.0954520105. The cubic root of 157655533 is about 540.2188561896.

The spelling of 157655533 in words is "one hundred fifty-seven million, six hundred fifty-five thousand, five hundred thirty-three".