254975531 has 4 divisors (see below), whose sum is σ = 256449552. Its totient is φ = 253501512.

The previous prime is 254975519. The next prime is 254975533. The reversal of 254975531 is 135579452.

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 254975531 - 2⁶ = 254975467 is a prime.

It is a super-2 number, since 2×254975531² = 130025042817463922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254975533) 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, 736751 + ... + 737096.

It is an arithmetic number, because the mean of its divisors is an integer number (64112388).

Almost surely, 2^254975531 is an apocalyptic number.

254975531 is a deficient number, since it is larger than the sum of its proper divisors (1474021).

254975531 is a wasteful number, since it uses less digits than its factorization.

254975531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474020.

The product of its digits is 189000, while the sum is 41.

The square root of 254975531 is about 15967.9532501821. The cubic root of 254975531 is about 634.1122867657.

The spelling of 254975531 in words is "two hundred fifty-four million, nine hundred seventy-five thousand, five hundred thirty-one".