2497557942 has 128 divisors (see below), whose sum is σ = 6546700800. Its totient is φ = 697507200.

The previous prime is 2497557929. The next prime is 2497557943.

2497557942 is a `hidden beast` number, since 2 + 49 + 7 + 557 + 9 + 42 = 666.

2497557942 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2497557943) 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 63 ways as a sum of consecutive naturals, for example, 414592 + ... + 420572.

It is an arithmetic number, because the mean of its divisors is an integer number (51146100).

Almost surely, 2^2497557942 is an apocalyptic number.

2497557942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2497557942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3273350400).

2497557942 is an abundant number, since it is smaller than the sum of its proper divisors (4049142858).

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

2497557942 is a wasteful number, since it uses less digits than its factorization.

2497557942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6059 (or 6053 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 54.

The square root of 2497557942 is about 49975.5734534382. The cubic root of 2497557942 is about 1356.7667466438.

The spelling of 2497557942 in words is "two billion, four hundred ninety-seven million, five hundred fifty-seven thousand, nine hundred forty-two".