51953901 has 4 divisors (see below), whose sum is σ = 69271872. Its totient is φ = 34635932.

The previous prime is 51953899. The next prime is 51953947. The reversal of 51953901 is 10935915.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51953901 - 2¹ = 51953899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51953401) 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, 8658981 + ... + 8658986.

It is an arithmetic number, because the mean of its divisors is an integer number (17317968).

Almost surely, 2^51953901 is an apocalyptic number.

It is an amenable number.

51953901 is a deficient number, since it is larger than the sum of its proper divisors (17317971).

51953901 is a wasteful number, since it uses less digits than its factorization.

51953901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17317970.

The product of its (nonzero) digits is 6075, while the sum is 33.

The square root of 51953901 is about 7207.9054516551. The cubic root of 51953901 is about 373.1407849745.

The spelling of 51953901 in words is "fifty-one million, nine hundred fifty-three thousand, nine hundred one".