28050157 has 4 divisors (see below), whose sum is σ = 28312416. Its totient is φ = 27787900.

The previous prime is 28050151. The next prime is 28050161. The reversal of 28050157 is 75105082.

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 28050157 - 2³ = 28050149 is a prime.

It is a super-2 number, since 2×28050157² = 1573622615449298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28050151) 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, 130969 + ... + 131182.

It is an arithmetic number, because the mean of its divisors is an integer number (7078104).

Almost surely, 2^28050157 is an apocalyptic number.

It is an amenable number.

28050157 is a deficient number, since it is larger than the sum of its proper divisors (262259).

28050157 is a wasteful number, since it uses less digits than its factorization.

28050157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262258.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 28050157 is about 5296.2398926031. The cubic root of 28050157 is about 303.8401059261.

The spelling of 28050157 in words is "twenty-eight million, fifty thousand, one hundred fifty-seven".