251212053 has 16 divisors (see below), whose sum is σ = 357414080. Its totient is φ = 156484224.

The previous prime is 251212037. The next prime is 251212057. The reversal of 251212053 is 350212152.

It is not a de Polignac number, because 251212053 - 2⁴ = 251212037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251212057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26026 + ... + 34347.

It is an arithmetic number, because the mean of its divisors is an integer number (22338380).

Almost surely, 2^251212053 is an apocalyptic number.

It is an amenable number.

251212053 is a deficient number, since it is larger than the sum of its proper divisors (106202027).

251212053 is a wasteful number, since it uses less digits than its factorization.

251212053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60468.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 251212053 is about 15849.6704382142. The cubic root of 251212053 is about 630.9769448320.

Subtracting 251212053 from its reverse (350212152), we obtain a palindrome (99000099).

The spelling of 251212053 in words is "two hundred fifty-one million, two hundred twelve thousand, fifty-three".