72433051 has 4 divisors (see below), whose sum is σ = 72477432. Its totient is φ = 72388672.

The previous prime is 72433043. The next prime is 72433057. The reversal of 72433051 is 15033427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15033427 = 19 ⋅791233.

It is a cyclic number.

It is not a de Polignac number, because 72433051 - 2³ = 72433043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72433057) 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, 19645 + ... + 23038.

It is an arithmetic number, because the mean of its divisors is an integer number (18119358).

Almost surely, 2^72433051 is an apocalyptic number.

72433051 is a deficient number, since it is larger than the sum of its proper divisors (44381).

72433051 is a wasteful number, since it uses less digits than its factorization.

72433051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44380.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 72433051 is about 8510.7608943032. The cubic root of 72433051 is about 416.8491557607.

Adding to 72433051 its reverse (15033427), we get a palindrome (87466478).

The spelling of 72433051 in words is "seventy-two million, four hundred thirty-three thousand, fifty-one".