242005400525 has 36 divisors (see below), whose sum is σ = 356507771328. Its totient is φ = 162415743840.

The previous prime is 242005400509. The next prime is 242005400557. The reversal of 242005400525 is 525004500242.

It is not a de Polignac number, because 242005400525 - 2⁴ = 242005400509 is a prime.

It is a super-2 number, since 2×242005400525² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2044079 + ... + 2159228.

It is an arithmetic number, because the mean of its divisors is an integer number (9902993648).

Almost surely, 2^242005400525 is an apocalyptic number.

242005400525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242005400525 is a deficient number, since it is larger than the sum of its proper divisors (114502370803).

242005400525 is a wasteful number, since it uses less digits than its factorization.

242005400525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203378 (or 4203366 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

Adding to 242005400525 its reverse (525004500242), we get a palindrome (767009900767).

The spelling of 242005400525 in words is "two hundred forty-two billion, five million, four hundred thousand, five hundred twenty-five".