54542531 has 2 divisors, whose sum is σ = 54542532. Its totient is φ = 54542530.

The previous prime is 54542507. The next prime is 54542561. The reversal of 54542531 is 13524545.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54542531 is a prime.

It is a super-2 number, since 2×54542531² = 5949775375771922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54542494 and 54542503.

It is not a weakly prime, because it can be changed into another prime (54542561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27271265 + 27271266.

It is an arithmetic number, because the mean of its divisors is an integer number (27271266).

Almost surely, 2^54542531 is an apocalyptic number.

54542531 is a deficient number, since it is larger than the sum of its proper divisors (1).

54542531 is an equidigital number, since it uses as much as digits as its factorization.

54542531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12000, while the sum is 29.

The square root of 54542531 is about 7385.2915311449. The cubic root of 54542531 is about 379.2379256214.

The spelling of 54542531 in words is "fifty-four million, five hundred forty-two thousand, five hundred thirty-one".