51201455 has 8 divisors (see below), whose sum is σ = 62182512. Its totient is φ = 40467328.

The previous prime is 51201431. The next prime is 51201499. The reversal of 51201455 is 55410215.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51201455 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51201455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61274 + ... + 62103.

It is an arithmetic number, because the mean of its divisors is an integer number (7772814).

Almost surely, 2^51201455 is an apocalyptic number.

51201455 is a deficient number, since it is larger than the sum of its proper divisors (10981057).

51201455 is a wasteful number, since it uses less digits than its factorization.

51201455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123465.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 51201455 is about 7155.5191984929. The cubic root of 51201455 is about 371.3306241097.

The spelling of 51201455 in words is "fifty-one million, two hundred one thousand, four hundred fifty-five".