60531511 has 4 divisors (see below), whose sum is σ = 63717400. Its totient is φ = 57345624.

The previous prime is 60531503. The next prime is 60531533. The reversal of 60531511 is 11513506.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 60531511 - 2³ = 60531503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60531551) 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, 1592916 + ... + 1592953.

It is an arithmetic number, because the mean of its divisors is an integer number (15929350).

Almost surely, 2^60531511 is an apocalyptic number.

60531511 is a deficient number, since it is larger than the sum of its proper divisors (3185889).

60531511 is a wasteful number, since it uses less digits than its factorization.

60531511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185888.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 60531511 is about 7780.1999331637. The cubic root of 60531511 is about 392.6393646850.

The spelling of 60531511 in words is "sixty million, five hundred thirty-one thousand, five hundred eleven".