51761542 has 24 divisors (see below), whose sum is σ = 90698400. Its totient is φ = 22090320.

The previous prime is 51761533. The next prime is 51761543. The reversal of 51761542 is 24516715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51761543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25584 + ... + 27532.

It is an arithmetic number, because the mean of its divisors is an integer number (3779100).

Almost surely, 2^51761542 is an apocalyptic number.

51761542 is a deficient number, since it is larger than the sum of its proper divisors (38936858).

51761542 is a wasteful number, since it uses less digits than its factorization.

51761542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236 (or 2229 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 51761542 is about 7194.5494646990. The cubic root of 51761542 is about 372.6796982922.

The spelling of 51761542 in words is "fifty-one million, seven hundred sixty-one thousand, five hundred forty-two".