51401262 has 32 divisors (see below), whose sum is σ = 112529664. Its totient is φ = 15523200.

The previous prime is 51401243. The next prime is 51401267. The reversal of 51401262 is 26210415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51401267) 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, 21087 + ... + 23397.

It is an arithmetic number, because the mean of its divisors is an integer number (3516552).

Almost surely, 2^51401262 is an apocalyptic number.

51401262 is an abundant number, since it is smaller than the sum of its proper divisors (61128402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51401262 is a wasteful number, since it uses less digits than its factorization.

51401262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 51401262 is about 7169.4673442314. The cubic root of 51401262 is about 371.8130202663.

Adding to 51401262 its reverse (26210415), we get a palindrome (77611677).

The spelling of 51401262 in words is "fifty-one million, four hundred one thousand, two hundred sixty-two".