251053006 has 8 divisors (see below), whose sum is σ = 385337304. Its totient is φ = 122607240.

The previous prime is 251052983. The next prime is 251053007. The reversal of 251053006 is 600350152.

It is a happy number.

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

It is a super-2 number, since 2×251053006² = 126055223643272072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251053007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1459525 + ... + 1459696.

It is an arithmetic number, because the mean of its divisors is an integer number (48167163).

Almost surely, 2^251053006 is an apocalyptic number.

251053006 is a deficient number, since it is larger than the sum of its proper divisors (134284298).

251053006 is a wasteful number, since it uses less digits than its factorization.

251053006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919266.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 251053006 is about 15844.6522839727. The cubic root of 251053006 is about 630.8437556594.

The spelling of 251053006 in words is "two hundred fifty-one million, fifty-three thousand, six".