253542026 has 4 divisors (see below), whose sum is σ = 380313042. Its totient is φ = 126771012.

The previous prime is 253542007. The next prime is 253542049. The reversal of 253542026 is 620245352.

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

It can be written as a sum of positive squares in only one way, i.e., 170276401 + 83265625 = 13049^2 + 9125^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 253542026.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63385505 + ... + 63385508.

Almost surely, 2^253542026 is an apocalyptic number.

253542026 is a deficient number, since it is larger than the sum of its proper divisors (126771016).

253542026 is a wasteful number, since it uses less digits than its factorization.

253542026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126771015.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 253542026 is about 15923.0030459081. The cubic root of 253542026 is about 632.9216993377.

Adding to 253542026 its reverse (620245352), we get a palindrome (873787378).

The spelling of 253542026 in words is "two hundred fifty-three million, five hundred forty-two thousand, twenty-six".