61753240 has 32 divisors (see below), whose sum is σ = 143429760. Its totient is φ = 23904000.

The previous prime is 61753217. The next prime is 61753243. The reversal of 61753240 is 4235716.

It is a junction number, because it is equal to n+sod(n) for n = 61753199 and 61753208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61753243) 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, 23661 + ... + 26140.

It is an arithmetic number, because the mean of its divisors is an integer number (4482180).

Almost surely, 2^61753240 is an apocalyptic number.

It is an amenable number.

61753240 is an abundant number, since it is smaller than the sum of its proper divisors (81676520).

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

61753240 is a wasteful number, since it uses less digits than its factorization.

61753240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49843 (or 49839 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 61753240 is about 7858.3229763099. The cubic root of 61753240 is about 395.2633825303.

Adding to 61753240 its reverse (4235716), we get a palindrome (65988956).

The spelling of 61753240 in words is "sixty-one million, seven hundred fifty-three thousand, two hundred forty".