525988142 has 4 divisors (see below), whose sum is σ = 788982216. Its totient is φ = 262994070.

The previous prime is 525988121. The next prime is 525988147. The reversal of 525988142 is 241889525.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×525988142² = 553327051049224328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 525988093 and 525988102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525988147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131497034 + ... + 131497037.

It is an arithmetic number, because the mean of its divisors is an integer number (197245554).

Almost surely, 2^525988142 is an apocalyptic number.

525988142 is a deficient number, since it is larger than the sum of its proper divisors (262994074).

525988142 is a wasteful number, since it uses less digits than its factorization.

525988142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262994073.

The product of its digits is 230400, while the sum is 44.

The square root of 525988142 is about 22934.4313642174. The cubic root of 525988142 is about 807.2201317123.

The spelling of 525988142 in words is "five hundred twenty-five million, nine hundred eighty-eight thousand, one hundred forty-two".