83150557 has 4 divisors (see below), whose sum is σ = 95029216. Its totient is φ = 71271900.

The previous prime is 83150549. The next prime is 83150563. The reversal of 83150557 is 75505138.

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.

It is not a de Polignac number, because 83150557 - 2³ = 83150549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83154557) 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, 5939319 + ... + 5939332.

It is an arithmetic number, because the mean of its divisors is an integer number (23757304).

Almost surely, 2^83150557 is an apocalyptic number.

It is an amenable number.

83150557 is a deficient number, since it is larger than the sum of its proper divisors (11878659).

83150557 is a wasteful number, since it uses less digits than its factorization.

83150557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11878658.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 83150557 is about 9118.6927242889. The cubic root of 83150557 is about 436.4706589439.

The spelling of 83150557 in words is "eighty-three million, one hundred fifty thousand, five hundred fifty-seven".