72435051 has 24 divisors (see below), whose sum is σ = 113524320. Its totient is φ = 44240256.

The previous prime is 72435029. The next prime is 72435061. The reversal of 72435051 is 15053427.

It is a happy number.

It is not a de Polignac number, because 72435051 - 2¹⁵ = 72402283 is a prime.

It is a super-2 number, since 2×72435051² = 10493673226745202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72435001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13770 + ... + 18288.

It is an arithmetic number, because the mean of its divisors is an integer number (4730180).

Almost surely, 2^72435051 is an apocalyptic number.

72435051 is a deficient number, since it is larger than the sum of its proper divisors (41089269).

72435051 is a wasteful number, since it uses less digits than its factorization.

72435051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675 (or 4672 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 72435051 is about 8510.8783917995. The cubic root of 72435051 is about 416.8529923639.

Adding to 72435051 its reverse (15053427), we get a palindrome (87488478).

The spelling of 72435051 in words is "seventy-two million, four hundred thirty-five thousand, fifty-one".