60400531 has 4 divisors (see below), whose sum is σ = 60421864. Its totient is φ = 60379200.

The previous prime is 60400519. The next prime is 60400547. The reversal of 60400531 is 13500406.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13500406 = 2 ⋅6750203.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60400531 is a prime.

It is a super-2 number, since 2×60400531² = 7296448290163922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 60400499 and 60400508.

It is not an unprimeable number, because it can be changed into a prime (60400331) 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, 5625 + ... + 12346.

It is an arithmetic number, because the mean of its divisors is an integer number (15105466).

Almost surely, 2^60400531 is an apocalyptic number.

60400531 is a deficient number, since it is larger than the sum of its proper divisors (21333).

60400531 is a wasteful number, since it uses less digits than its factorization.

60400531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21332.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 60400531 is about 7771.7778532328. Note that the first 3 decimals coincide. The cubic root of 60400531 is about 392.3559583425.

Adding to 60400531 its reverse (13500406), we get a palindrome (73900937).

The spelling of 60400531 in words is "sixty million, four hundred thousand, five hundred thirty-one".