55725052740 has 384 divisors, whose sum is σ = 191616122880. Its totient is φ = 11824952832.

The previous prime is 55725052727. The next prime is 55725052741. The reversal of 55725052740 is 4725052755.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 55725052692 and 55725052701.

It is not an unprimeable number, because it can be changed into a prime (55725052741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 63108339 + ... + 63109221.

It is an arithmetic number, because the mean of its divisors is an integer number (499000320).

Almost surely, 2^55725052740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55725052740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95808061440).

55725052740 is an abundant number, since it is smaller than the sum of its proper divisors (135891070140).

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

55725052740 is a wasteful number, since it uses less digits than its factorization.

55725052740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 42.

The spelling of 55725052740 in words is "fifty-five billion, seven hundred twenty-five million, fifty-two thousand, seven hundred forty".