525745742 has 16 divisors (see below), whose sum is σ = 794914560. Its totient is φ = 260780472.

The previous prime is 525745741. The next prime is 525745777. The reversal of 525745742 is 247547525.

It is a super-2 number, since 2×525745742² = 552817170462261128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 525745742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525745741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233273 + ... + 235515.

It is an arithmetic number, because the mean of its divisors is an integer number (49682160).

Almost surely, 2^525745742 is an apocalyptic number.

525745742 is a deficient number, since it is larger than the sum of its proper divisors (269168818).

525745742 is a wasteful number, since it uses less digits than its factorization.

525745742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127.

The product of its digits is 392000, while the sum is 41.

The square root of 525745742 is about 22929.1461245289. The cubic root of 525745742 is about 807.0961110295.

The spelling of 525745742 in words is "five hundred twenty-five million, seven hundred forty-five thousand, seven hundred forty-two".