266252542 has 8 divisors (see below), whose sum is σ = 399484800. Its totient is φ = 133090944.

The previous prime is 266252537. The next prime is 266252543. The reversal of 266252542 is 245252662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×266252542² = 141780832242923528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 266252498 and 266252507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266252543) 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, 6942 + ... + 24097.

It is an arithmetic number, because the mean of its divisors is an integer number (49935600).

Almost surely, 2^266252542 is an apocalyptic number.

266252542 is a deficient number, since it is larger than the sum of its proper divisors (133232258).

266252542 is a wasteful number, since it uses less digits than its factorization.

266252542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35330.

The product of its digits is 57600, while the sum is 34.

The square root of 266252542 is about 16317.2467653094. The cubic root of 266252542 is about 643.3262229669.

The spelling of 266252542 in words is "two hundred sixty-six million, two hundred fifty-two thousand, five hundred forty-two".