61551024 has 40 divisors (see below), whose sum is σ = 161388480. Its totient is φ = 20209728.

The previous prime is 61551019. The next prime is 61551029. The reversal of 61551024 is 42015516.

61551024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61551019) and next prime (61551029).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 61550985 and 61551003.

It is not an unprimeable number, because it can be changed into a prime (61551029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6354 + ... + 12785.

It is an arithmetic number, because the mean of its divisors is an integer number (4034712).

Almost surely, 2^61551024 is an apocalyptic number.

It is an amenable number.

61551024 is an abundant number, since it is smaller than the sum of its proper divisors (99837456).

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

61551024 is a wasteful number, since it uses less digits than its factorization.

61551024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19217 (or 19211 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 61551024 is about 7845.4460676242. The cubic root of 61551024 is about 394.8314700593.

The spelling of 61551024 in words is "sixty-one million, five hundred fifty-one thousand, twenty-four".