45487542 has 16 divisors (see below), whose sum is σ = 91579392. Its totient is φ = 15061800.

The previous prime is 45487487. The next prime is 45487549. The reversal of 45487542 is 24578454.

It is a self number, because there is not a number n which added to its sum of digits gives 45487542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45487549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24198 + ... + 26009.

It is an arithmetic number, because the mean of its divisors is an integer number (5723712).

Almost surely, 2^45487542 is an apocalyptic number.

45487542 is an abundant number, since it is smaller than the sum of its proper divisors (46091850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45487542 is a wasteful number, since it uses less digits than its factorization.

45487542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50363.

The product of its digits is 179200, while the sum is 39.

The square root of 45487542 is about 6744.4452699981. The cubic root of 45487542 is about 356.9692634916.

It can be divided in two parts, 4548 and 7542, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 45487542 in words is "forty-five million, four hundred eighty-seven thousand, five hundred forty-two".