742625550 has 96 divisors (see below), whose sum is σ = 2060463360. Its totient is φ = 196668000.

The previous prime is 742625549. The next prime is 742625551. The reversal of 742625550 is 55526247.

742625550 is a `hidden beast` number, since 7 + 42 + 62 + 5 + 550 = 666.

It is an interprime number because it is at equal distance from previous prime (742625549) and next prime (742625551).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742625551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202029 + ... + 205671.

It is an arithmetic number, because the mean of its divisors is an integer number (21463160).

Almost surely, 2^742625550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742625550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1030231680).

742625550 is an abundant number, since it is smaller than the sum of its proper divisors (1317837810).

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

742625550 is a wasteful number, since it uses less digits than its factorization.

742625550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3815 (or 3804 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 742625550 is about 27251.1568561777. The cubic root of 742625550 is about 905.5726461340.

The spelling of 742625550 in words is "seven hundred forty-two million, six hundred twenty-five thousand, five hundred fifty".