511252442 has 8 divisors (see below), whose sum is σ = 767161236. Its totient is φ = 255532032.

The previous prime is 511252409. The next prime is 511252451. The reversal of 511252442 is 244252115.

It can be written as a sum of positive squares in 2 ways, for example, as 508908481 + 2343961 = 22559^2 + 1531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×511252442² = 522758118901926728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40103 + ... + 51290.

Almost surely, 2^511252442 is an apocalyptic number.

511252442 is a deficient number, since it is larger than the sum of its proper divisors (255908794).

511252442 is a wasteful number, since it uses less digits than its factorization.

511252442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94192.

The product of its digits is 3200, while the sum is 26.

The square root of 511252442 is about 22610.8921097775. The cubic root of 511252442 is about 799.6104572263.

The spelling of 511252442 in words is "five hundred eleven million, two hundred fifty-two thousand, four hundred forty-two".