51523032 has 32 divisors (see below), whose sum is σ = 140518080. Its totient is φ = 15612960.

The previous prime is 51523027. The next prime is 51523037. The reversal of 51523032 is 23032515.

It is an interprime number because it is at equal distance from previous prime (51523027) and next prime (51523037).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51523037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97318 + ... + 97845.

It is an arithmetic number, because the mean of its divisors is an integer number (4391190).

Almost surely, 2^51523032 is an apocalyptic number.

It is an amenable number.

51523032 is an abundant number, since it is smaller than the sum of its proper divisors (88995048).

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

51523032 is a wasteful number, since it uses less digits than its factorization.

51523032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195183 (or 195179 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 51523032 is about 7177.9545833057. The cubic root of 51523032 is about 372.1063980544.

Adding to 51523032 its reverse (23032515), we get a palindrome (74555547).

The spelling of 51523032 in words is "fifty-one million, five hundred twenty-three thousand, thirty-two".