1005253542 has 12 divisors (see below), whose sum is σ = 2178049380. Its totient is φ = 335084508.

The previous prime is 1005253541. The next prime is 1005253549. The reversal of 1005253542 is 2453525001.

It is a happy number.

1005253542 is a `hidden beast` number, since 100 + 525 + 35 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005253541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27923692 + ... + 27923727.

It is an arithmetic number, because the mean of its divisors is an integer number (181504115).

Almost surely, 2^1005253542 is an apocalyptic number.

1005253542 is an abundant number, since it is smaller than the sum of its proper divisors (1172795838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1005253542 is a wasteful number, since it uses less digits than its factorization.

1005253542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55847427 (or 55847424 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1005253542 is about 31705.7335824295. The cubic root of 1005253542 is about 1001.7481229521.

Adding to 1005253542 its reverse (2453525001), we get a palindrome (3458778543).

The spelling of 1005253542 in words is "one billion, five million, two hundred fifty-three thousand, five hundred forty-two".